Which water filter/treatment is best for my water? Is it legal?
Type the city. Autocomplete is only places we have a file for — Los Angeles, San Diego, Phoenix, Las Vegas, Dallas, Portland, and the rest of the metros we actually opened a WQR for. Then you get the chemistry we can cite, whether brine is allowed, and what kind of system even makes sense.
Loading a guess. If nothing happens, this stays on Phoenix.
Albuquerque, New Mexico
Full file: Albuquerque · Albuquerque Bernalillo County Water Utility Authority (ABCWUA)
What’s in the water
ABCWUA says treated San Juan-Chama surface water and groundwater have been blended since 2008, and hardness ranges from moderately hard to hard depending on the zone. They chlorinate (sodium hypochlorite). The FAQ tells you to look up your distribution zone instead of using one city number. This file does not invent grains from a third-party site.
- Hardness (as published)
- ABCWUA FAQ: since December 2008, treated surface water and groundwater have been blended; hardness ranges from moderately hard to hard depending on sources and blend. Look up your distribution zone. This file does not invent a citywide gpg from a third-party site. — ABCWUA drinking water FAQs (hardness); 2025 Water Quality Report
- Disinfectant (as published)
- Chlorination (sodium hypochlorite). 2025 report lists chlorine disinfectant in the distribution system. — ABCWUA 2025 Water Quality Report; ABCWUA treatment description
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Albuquerque or Bernalillo County sanitation prohibition comparable to LACSD Measure S turned up. Ask the Water Authority / sewer utility.
ABCWUA / City of Albuquerque wastewater (confirm on the bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Zone blend. Chlorine. Test the tap in your pressure zone before you size resin.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Atlanta, Georgia
Full file: Atlanta · City of Atlanta Department of Watershed Management
What’s in the water
Atlanta Department of Watershed Management publishes an annual CCR and treats Chattahoochee / Lanier surface water. Their 2025 taste-and-odor notice points at MIB and geosmin and says they feed powdered activated carbon. This file does not invent a grains-per-gallon figure from a ranking site. Open the 2025 Water Quality Report for hardness and for whether the residual is chlorine or chloramine.
- Hardness (as published)
- Not printed in a form we were willing to scrape from a third-party ranking page. Open the 2025 Water Quality Report on atlantawatershed.org. Chattahoochee / Lanier is surface water; do not assume desert grains. — Atlanta Department of Watershed Management Water Quality Reports index (open the current CCR)
- Disinfectant (as published)
- Open the current CCR for chlorine vs chloramine. The 2025 taste-and-odor FAQ recommends carbon filters for household taste/odor and says the plants feed powdered activated carbon for MIB and geosmin. — Atlanta Watershed Water Quality FAQs (Dec 2025 update); DWM Nov 19, 2025 news release
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No City of Atlanta sewer prohibition comparable to LACSD Measure S turned up. Ask Watershed / the sewer utility before you cut a brine drain.
City of Atlanta Department of Watershed Management (wastewater)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If a dealer is selling hardness equipment
Open the current CCR for grains. This file does not invent a number from a ranking site. A salt softener needs a drain if it is legal at the address.
Shop salt-based softenersShop salt-free conditionersShop water test kits
If the water tastes like the plant’s disinfectant
Open the CCR for chlorine vs chloramine, then match that claim. A 42 chlorine listing is not chloramine.
Shop whole-house carbonShop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Surface-water city. Taste/odor is often algae chemistry, which is a carbon job, not a softener job. Read the CCR before anyone sells you 64,000 grains.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Austin, Texas
Full file: Austin · Austin Water
What’s in the water
Austin Water’s 2025 Consumer Confidence Report page lists total hardness 70–126 ppm as CaCO3 (4.1–7.4 gpg), average 93 ppm / 5.4 gpg. Chloramines in the distribution system averaged 2.3 ppm (range 0.06–3.1). Highland Lakes water, not a well.
- Hardness (as published)
- 2025 CCR page: total hardness as CaCO3 70–126 ppm (4.1–7.4 gpg), average 93 ppm / 5.4 gpg. — Austin Water 2025 Consumer Confidence Report (austintexas.gov water quality reports)
- Disinfectant (as published)
- Chloramines. 2025 table: 0.06–3.1 ppm, average 2.3 ppm (MRDL 4). — Austin Water 2025 Consumer Confidence Report
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Austin Water sewer prohibition comparable to LACSD Measure S turned up. Confirm with Austin Water wastewater before you cut a brine drain.
Austin Water / City of Austin wastewater
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Mid-range hardness. Chloramine. A 80k-grain clock softener is usually someone counting bathrooms.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Dallas, Texas
Full file: Dallas · Dallas Water Utilities
What’s in the water
Dallas Water Utilities says they use chloramines (chlorine plus ammonia) in the distribution system, and they describe Dallas water as moderately hard. The current water-quality information page is the citation for those two sentences. This file does not copy an old CCR grains table onto 2025.
- Hardness (as published)
- Dallas Water Utilities describes Dallas water as moderately hard (calcium and magnesium). The current water-quality information page is the citation. This file does not paste a years-old CCR grains range onto 2025. — Dallas Water Utilities, water quality information (hardness FAQ)
- Disinfectant (as published)
- Chloramines (chlorine + ammonia) in the distribution system. Elm Fork also uses ozone plus chloramines. — Dallas Water Utilities water quality information page
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Dallas or regional wastewater prohibition comparable to LACSD Measure S turned up. Ask the sewer department before you cut a brine drain.
City of Dallas wastewater / DWU (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Moderately hard, chloramine. A whole-house “toxin” package is still a vial pitch.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Denver, Colorado
Full file: Denver · Denver Water
What’s in the water
Denver Water’s 2026 Water Quality Report (2025 sampling) lists total hardness averaging 105,009 ppb — that is about 105 mg/L as CaCO3 — with a range of 55–124 mg/L. USGS would call that moderately hard, not Phoenix. They report total chlorine in the distribution system (chloramine residual).
- Hardness (as published)
- 2025 sampling in the 2026 Water Quality Report: total hardness average 105,009 ppb (about 105 mg/L as CaCO3), range 55,000–124,000 ppb (55–124 mg/L). Moderately hard on the USGS scale. — Denver Water 2026 Water Quality Report (2025 data)
- Disinfectant (as published)
- Total chlorine residual in the distribution system (chloramine). Denver Water reports total chlorine, not free-chlorine-only. — Denver Water 2026 Water Quality Report; Denver Water treated-water reporting practice (total chlorine)
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Denver Water or Metro Wastewater prohibition comparable to LACSD Measure S turned up. Ask the sewer utility on the bill. This is not a legal opinion.
Metro Water Recovery / City wastewater (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Mountain snowmelt is not 16-grain desert water. Chloramine is why the carbon claim matters more than the tank diameter.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Houston, Texas
Full file: Houston · Houston Public Works / Houston Water
What’s in the water
Houston Public Works’ 2025 Water Quality Report lists total hardness as CaCO3 from 43.5 to 229 ppm (average 135.5 ppm) on the main-system table. Distribution chloramines are printed on that report. Groundwater blends and MUDs outside the city are not this file.
- Hardness (as published)
- 2025 main-system table: total hardness as CaCO3 minimum 43.5, average 135.5, maximum 229 ppm. — Houston Water Quality Report, January–December 2025 (main system)
- Disinfectant (as published)
- Chloramines in the distribution system (printed on the 2025 report). Some satellite systems list chlorine separately — read the table for your PWS. — Houston Water Quality Report 2025
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No City of Houston prohibition comparable to LACSD Measure S turned up. Municipal utility districts outside the city limits are not this ordinance search. Ask the sewer provider on the bill.
City of Houston wastewater (MUDs write their own rules)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Surface-plus-well blend. Hardness is a range. Chloramine is the disinfectant on the city report.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Las Vegas, Nevada
Full file: Las Vegas · Las Vegas Valley Water District
What’s in the water
Las Vegas Valley Water District’s current Water Quality Report tells softener owners to set hardness at 280 ppm / 16 grains per gallon. They treat Lake Mead water with ozone, filtration, and chlorination, and they add chlorine as water leaves the plants. FAQ pages have also printed 291 ppm / 17 gpg — use the number on the report you open, then test the tap.
- Hardness (as published)
- Current LVVWD Water Quality Report tells customers to set a softener at 280 ppm / 16 grains per gallon. Some FAQ pages have also printed 291 ppm / 17 gpg. Use the report you open, then test the tap. — Las Vegas Valley Water District Water Quality Report (current PDF); LVVWD water quality FAQs
- Disinfectant (as published)
- Chlorine added as water leaves SNWA treatment plants (ozone + filtration + chlorination). Groundwater: chlorine as it enters distribution. Free chlorine residual on the report (example: avg about 0.99–1.0 ppm). — LVVWD Water Quality Report; LVVWD testing and treatment page
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Southern Nevada sanitation prohibition comparable to LACSD Measure S turned up for this file. HOAs and specific districts can still write rules. Ask the agency on the sewer bill.
City of Las Vegas / Clark County Water Reclamation (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Colorado River minerals. Chlorine residual. This is a sizing file, not a toxin file.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Los Angeles, California
Full file: Los Angeles · Los Angeles Department of Water and Power (LADWP)
What’s in the water
LADWP’s monitoring tables show hardness that changes with the source: about 93–107 mg/L at the Los Angeles Aqueduct Filtration Plant and much harder on some other sources (published ranges into the high 200s mg/L as CaCO3). The city uses chloramine in the distribution system. Do not copy one plant’s number onto every ZIP.
- Hardness (as published)
- Varies by source. LADWP monitoring tables: Los Angeles Aqueduct Filtration Plant about 103 mg/L as CaCO3 (range 93–107); other published source ranges run into the mid/high 200s mg/L. Not one ZIP-wide grains number. — LADWP Drinking Water Quality Report monitoring results tables
- Disinfectant (as published)
- Chloramine (ammonia + chloramines listed on LADWP monitoring tables; PHG report describes chloramination before distribution) — LADWP monitoring results tables; 2025 Drinking Water Public Health Goals Report
Is a salt softener even legal?
Check the sanitation district before you buy a salt system. City of Los Angeles sewer is LASAN. The LACSD automatic-softener prohibition we cite is the Santa Clarita Valley / Measure S file, not a citywide Los Angeles rule. We did not find a published LASAN ban comparable to Measure S. Adjacent LACSD cities are a different sewer. Ask the agency on the sewer bill.
City of Los Angeles Sanitation (LASAN) — not LACSD/SCV
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and you want a salt softener
Ask the agency on the sewer side of the bill before you cut a brine drain. California lets districts restrict self-regenerating units. A “banned in California” blog is not your district.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
LA is a blend of aqueduct, local, and MWD water. Chloramine is the disinfectant on LADWP’s own pages. Hardness is not one number for the whole city.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Phoenix, Arizona
Full file: Phoenix · City of Phoenix Water Services Department
What’s in the water
Phoenix city water is hard to very hard. The 2025 Water Quality Report says 172–302 ppm, which is 10–17.6 grains per gallon. That is calcium and magnesium. It spots glasses and scales heaters. The city says they disinfect with chlorine, not chloramine. Iron on that report is basically nothing (ND–30 ppb). If your house is on a private well, this file is the wrong one.
- Hardness (as published)
- 172–302 ppm as CaCO3 (10–17.6 grains per gallon) in the 2025 Water Quality Report system range — City of Phoenix 2025 Water Quality Report
- Disinfectant (as published)
- Chlorine (city FAQ; residual described around 1 ppm leaving the plant) — City of Phoenix Water Services FAQs
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Phoenix city or county sanitation prohibition comparable to LACSD Measure S turned up in the research for this file. Still ask the agency on the sewer bill before cutting a brine drain — rules change by jurisdiction, not by metro-area folklore.
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Hardness is minerals. Chlorine is the disinfectant the plant adds. They are different jobs. Iron and sulfur are well-water problems and are not what Phoenix city water is doing on the published report.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Portland, Oregon
Full file: Portland · Portland Water Bureau
What’s in the water
Portland Water Bureau says Bull Run — the usual supply — is soft: typically 7–11 ppm total hardness, about half a grain per gallon. Groundwater from the Columbia South Shore wells is moderately hard, about 80 ppm / 5 gpg, and is not the everyday source. They add chlorine, then ammonia, so the residual is chloramine.
- Hardness (as published)
- Bull Run (typical supply): 7–11 ppm total hardness, about ½ grain per gallon. Columbia South Shore groundwater: about 80 ppm / 5 gpg. April 2026 supplemental table: Bull Run hardness 6.6 ppm (0.39 gpg). — Portland Water Bureau 2025 and 2026 Drinking Water Quality Reports; Drinking water test results page; Supplemental Water Quality Data April 2026
- Disinfectant (as published)
- Chlorine, then ammonia to form chloramine. Target entry-point chlorine about 2.2–2.5 mg/L by season. Total chlorine residual is what they report. — Portland Water Bureau 2025/2026 Drinking Water Quality Reports; About Portland’s drinking water quality
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Portland BES prohibition comparable to LACSD Measure S turned up. On Bull Run water a salt softener is usually the wrong machine anyway. Private wells in Clackamas or Washington County are not this sewer search.
City of Portland Bureau of Environmental Services
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If a dealer is selling you a softener anyway
This supply is soft on the published numbers. A salt tank is usually the wrong box unless you are on a well or a different utility. Test the tap before you buy hardness equipment.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
Why these are different things
Bull Run is famously soft. Chloramine is the disinfectant. Private wells in Clackamas or Washington County are a different file — do not paste this page onto a well.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Riverside, California
Full file: Riverside · Riverside Public Utilities
What’s in the water
Riverside Public Utilities’ 2024 sampling table prints hardness at 194 mg/L (11 grains per gallon), range 180–210 mg/L. They list chlorine residual (avg 0.60 mg/L). The city FAQ says the supply has a trace of chlorine and points people who want it gone at carbon, not at a medical story.
- Hardness (as published)
- 194 mg/L as CaCO3 (11 grains per gallon), range 180–210 mg/L on the 2024 RPU sampling table. — Riverside Public Utilities 2024 Water Sampling Data / Water Quality Report
- Disinfectant (as published)
- Chlorine residual 0.60 mg/L average (0.24–0.88) on the 2024 table. City FAQ: trace chlorine; carbon if you want it gone. — Riverside Public Utilities 2024 Water Quality Report; RPU Water Quality FAQ
Is a salt softener even legal?
Check the sanitation district before you buy a salt system. Inland Empire agencies talk about salinity. We did not find a Riverside city ordinance that bans residential self-regenerating softeners the way LACSD does in the Santa Clarita Valley. Ask the sewer utility — Western Municipal and the city are not interchangeable.
City of Riverside / regional wastewater (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and you want a salt softener
Ask the agency on the sewer side of the bill before you cut a brine drain. California lets districts restrict self-regenerating units. A “banned in California” blog is not your district.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Hard groundwater city. Chlorine, not chloramine, on the RPU table we opened. Confirm your CCR year if you are sizing carbon.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Sacramento, California
Full file: Sacramento · City of Sacramento Department of Utilities
What’s in the water
The City of Sacramento 2025 Consumer Confidence Report lists hardness of 15–154 mg/L as CaCO3 (0.9–9.0 gpg) for 2023–2025 groundwater/system tables, with mid-range values around 4.9 gpg on one printed line. They list chlorine as the residual disinfectant (as Cl2). Soft-to-hard depending on river vs wells.
- Hardness (as published)
- 2023–2025 tables in the 2025 CCR: hardness 15–154 mg/L as CaCO3 (0.9–9.0 gpg). Mid-range printed values around 83 mg/L / 4.9 gpg on one line. River vs wells differ. — City of Sacramento 2025 Consumer Confidence Report
- Disinfectant (as published)
- Chlorine as Cl2 (2025 table: average 0.8 mg/L, range 0.2–1.4) — City of Sacramento 2025 Consumer Confidence Report
Is a salt softener even legal?
Check the sanitation district before you buy a salt system. No City of Sacramento prohibition comparable to LACSD Measure S turned up. California still authorizes local agencies to restrict self-regenerating softeners by ordinance. Ask Utilities / the sewer side of the bill.
City of Sacramento Department of Utilities (wastewater)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and you want a salt softener
Ask the agency on the sewer side of the bill before you cut a brine drain. California lets districts restrict self-regenerating units. A “banned in California” blog is not your district.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Sacramento is not Phoenix. Some addresses are barely hard. A 64k-grain quote that ignores the CCR is a bathroom-count quote.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Salt Lake City, Utah
Full file: Salt Lake City · Salt Lake City Department of Public Utilities
What’s in the water
Salt Lake City Public Utilities’ 2025 Drinking Water Quality Report prints total hardness by source/plant (examples: 121, 174, 198 ppm) and a well range up to 487 ppm (about 7.1–28.6 gpg). Canyon creeks are softer; summer wells are harder. They list chlorine as the residual disinfectant on that table.
- Hardness (as published)
- 2025 report: total hardness by source/plant examples 121, 174, 198 ppm; well range printed up to 487 ppm (about 7.1–28.6 gpg). Canyon creeks softer; summer wells harder. — Salt Lake City 2025 Drinking Water Quality Report
- Disinfectant (as published)
- Chlorine residual on the 2025 disinfectant table (example averages around 0.6–0.8 mg/L depending on column). Treatment narrative: chlorine (or another disinfectant) after filtration. — Salt Lake City 2025 Drinking Water Quality Report
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Salt Lake City Public Utilities sewer prohibition comparable to LACSD Measure S turned up. Ask the utilities / sewer side of the bill.
Salt Lake City Public Utilities (wastewater) / regional sewer
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Wasatch creek vs valley well is the whole story. Do not size a Sugar House house from a City Creek number.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
San Diego, California
Full file: San Diego · City of San Diego Public Utilities Department
What’s in the water
The City of San Diego 2025 Annual Drinking Water Quality Report prints total hardness at the city plants around 237–243 ppm (about 13.8–14.2 gpg), with purchased water lower (avg 145 ppm / 8.5 gpg). They disinfect the distribution system with chloramines.
- Hardness (as published)
- City treatment plants (2025 CCR): Alvarado avg 237 ppm / 13.8 gpg (203–270 ppm); Miramar 242 ppm / 14.1 gpg; Otay 243 ppm / 14.2 gpg. Purchased water avg 145 ppm / 8.5 gpg. — City of San Diego 2025 Annual Drinking Water Quality Report
- Disinfectant (as published)
- Chloramines in the distribution system (chlorine + ammonia). Plants also use ozone or chlorine dioxide as primary disinfection depending on the plant. — City of San Diego 2025 Annual Drinking Water Quality Report
Is a salt softener even legal?
Check the sanitation district before you buy a salt system. The 2025 City of San Diego CCR we opened does not include a Measure S-style prohibition. California Health and Safety Code still lets a local agency restrict self-regenerating softeners if they adopt an ordinance. Ask the sewer agency before you cut a brine drain.
City of San Diego wastewater / Public Utilities
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and you want a salt softener
Ask the agency on the sewer side of the bill before you cut a brine drain. California lets districts restrict self-regenerating units. A “banned in California” blog is not your district.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Colorado River and local supplies make this hard city water. Chloramine is why a chlorine-only carbon tank is the lazy quote.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
San Jose, California
Full file: San Jose · San Jose Water (SJW)
What’s in the water
San Jose Water’s 2025 CCR shows hardness that jumps with the source: published grains from about 5–10 on some surface/purchased water up to 9–32 gpg on groundwater (155–545 ppm as CaCO3 in that table). They say chloramine and chlorine may both be present. Iron showed ND on some sources and a range that hit 420 ppb on another — not a reason to invent a citywide iron-filter job.
- Hardness (as published)
- SJW 2025 CCR tables: hardness as CaCO3 from about 82–168 ppm (5–10 gpg) on some surface/purchased water to 155–545 ppm (9–32 gpg) on groundwater columns. Zone-dependent. — San Jose Water 2025 Consumer Confidence Report (main system)
- Disinfectant (as published)
- Chloramine and chlorine may both be present (SJW dialysis/aquarium notice). Surface water from Montevina and Valley Water already uses chloramines; some wells have been converting. — San Jose Water 2025 CCR; SJW Notification of Treatment Change (Williams Station wells)
Is a salt softener even legal?
Check the sanitation district before you buy a salt system. No San Jose ordinance matching the LACSD Santa Clarita Valley automatic-softener prohibition turned up for this file. Valley Water and the city sewer are not that district. Ask the agency that owns the sewer before you cut a brine drain.
City of San Jose / regional wastewater (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and you want a salt softener
Ask the agency on the sewer side of the bill before you cut a brine drain. California lets districts restrict self-regenerating units. A “banned in California” blog is not your district.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
San Jose is not one hardness. Groundwater zones and Valley Water surface water are different jobs. Size from your tap, not from a neighbor in another pressure zone.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Santa Clarita Valley, California
Full file: Santa Clarita Valley · Santa Clarita Valley Water Agency (SCV Water)
What’s in the water
SCV Water says the hard stuff is calcium and magnesium from groundwater. Spots on glass. They do not treat that as a health contaminant. They also say disinfection switched to chloramine in 2005, so a chlorine-only carbon listing is the wrong box. We are not printing a grains-per-gallon number from a dealer blog. Open your CCR or test the tap.
- Hardness (as published)
- SCV Water confirms hardness from calcium and magnesium in groundwater and describes spotting as an aesthetic issue. This file does not invent a grains-per-gallon figure; read the current CCR for your division and test the tap. — SCV Water, Understanding Water Quality
- Disinfectant (as published)
- Chloramine (changed from chlorine in 2005) — SCV Water, Understanding Water Quality
Is a salt softener even legal?
Self-regenerating salt softeners that drain to the sewer are prohibited here. LACSD prohibits automatic salt-based softeners that discharge chloride to the sewer. Measure S (2008) required removal of those units. Santa Clarita’s plumbing code excepts portable-exchange tanks that discharge no brine on site.
Los Angeles County Sanitation Districts — Santa Clarita Valley
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If you want actual soft water
Portable-exchange tanks, if that exception applies at your address. The resin still removes hardness. The salt work happens off site. Do not install a self-regenerating unit to the sewer here.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Hardness is still hardness. Chloramine is the disinfectant. Brine is a sewer problem, which is why the salt softener you would buy in Phoenix can be the wrong machine here.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Tampa, Florida
Full file: Tampa · City of Tampa Water Department
What’s in the water
The City of Tampa 2025 Water Quality Report (published 2026) says average finished-water hardness was 211 mg/L / 12.3 grains per gallon. They add chlorine, then ammonia, to make chloramine for the pipes. They also switch to chlorine-only for a few weeks at a time for maintenance — the city says so on its disinfection page.
- Hardness (as published)
- 2025 finished-water average total hardness 211 mg/L / 12.3 grains per gallon (city Q&A in the 2025 Water Quality Report). — City of Tampa 2025 Water Quality Report (published 2026)
- Disinfectant (as published)
- Secondary disinfection: chlorine, then ammonia to form chloramine. City also switches to chlorine-only for three-week intervals several times a year. — City of Tampa 2025 Water Quality Report; Tampa chlorine disinfection / water system maintenance page
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Tampa or Hillsborough sewer prohibition comparable to LACSD Measure S turned up. Ask the wastewater utility before you cut a brine line.
City of Tampa wastewater (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the water tastes like pool-plus-ammonia
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box. AquaOx names catalytic carbon for chloramine on its own page; still check the listing, not the flag.
Shop catalytic carbon for chloramineShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Hard Hillsborough River water plus chloramine, with periodic chlorine burns. Carbon has to match the residual you actually have that month.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Tucson, Arizona
Full file: Tucson · Tucson Water
What’s in the water
Tucson Water says the blend of local groundwater and Colorado River water is hard to very hard, and that hardness is not a health risk in that description. They chlorinate (about 1 ppm residual on the 2024 Main System CCR). This file does not invent a single grains number from a third-party scraper. Use their neighborhood map or a titration.
- Hardness (as published)
- Tucson Water classifies the groundwater + Colorado River blend as hard to very hard and says hardness is not a health risk in that description. This file does not invent a single gpg from a third-party scraper. Use the neighborhood dashboard or a titration. — Tucson Water Water Quality page; Tucson Water parameter explanation table; 2024 Main System CCR
- Disinfectant (as published)
- Chlorine. 2024 Main System CCR: chlorine residual about 1.0 ppm (0.96–1.14). Target band described as 0.80–1.2 mg/L. — Tucson Water 2024 Annual Water Quality Report — Main System AZ0410112
Is a salt softener even legal?
No district ban like Santa Clarita turned up in the file. No Tucson or Pima County sanitation prohibition comparable to LACSD Measure S turned up. Still ask the agency on the sewer bill. Private wells and isolated Tucson Water systems are not the Main System CCR.
City of Tucson / Pima County wastewater (confirm on the sewer bill)
What actually fits
Some links are affiliate links. If you buy through one, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. That does not change the match, and it is not a medical claim.
An “American made” label is only on a brand that publishes a U.S.-made claim we can cite. Generic Amazon searches do not get it.
If soap will not lather and the glassware looks chalky
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
If you only want less scale and you hate salt bags
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
If the shower just smells like the pool
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out. AquaOx publishes Made in USA for its whole-house unit — that badge is their claim, not a generic Amazon listing.
Shop whole-house carbonShop AquaOx whole-house filtersAmerican made
If you are shopping a PFAS listing for the kitchen
A pitcher or under-sink RO whose exact model is listed for PFAS under NSF/ANSI 53 or 58. US Water Systems publishes Made in USA for its American Made RO line. That is their RO claim — they say their softeners are not 100% U.S. parts.
Shop under-sink reverse osmosisShop US Water Systems ROAmerican madeShop PFAS-listed pitchers
If you have not tested the tap
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
Why these are different things
Hard desert water, chlorine, not a well-iron story unless you are actually on a well.
Hardness is calcium and magnesium. Iron stains orange. Sulfur smells like rotten eggs (usually a well). Chlorine and chloramine are what the plant adds so the pipe stays disinfected. A softener does one of those jobs. Carbon does another. Do not buy all four because a vial changed color.
Each city is a Markdown file with a cited utility report, not a generated spam page. Guides and the long indexes are still in the header if you want to wander.