Increases pH by dissolving alkaline media so downstream oxidation and ion exchange can work, and so plumbing sees less aggressive water.
What the equipment does
Match the machine to the chemistry and the sewer rule. Then maybe shop a category.
Salt softener if the report prints hardness and the sewer allows brine (example: Kennewick, Akron). Salt-free conditioner if brine is restricted or you only want scale behavior (example: Fontana / IEUA, Lady Lake). Carbon for chlorine or chloramine taste. Under-sink reverse osmosis for drinking water at the kitchen — Cloud RO is the preferred Amazon listing on city pages (tag tapmatch-20). We do not claim we use it.
Adsorb (and with catalytic carbon, help decompose) disinfectant and many taste-and-odor compounds; may carry contaminant-specific 53 claims on a named model.
Converts dissolved iron/manganese/H2S so a backwashing media bed can hold the solids — the well-water answer when staining or rotten-egg odor is the complaint.
Produces a separate drinking-water stream with reduced TDS and any contaminants named on that system’s 58 listing (fluoride, arsenic, nitrate, chromium-6, lead, PFAS — only if listed).
Exchanges calcium and magnesium ions for sodium or potassium, which is what NSF/ANSI 44 and EPA WaterSense mean by residential softening.
Encourages calcium and magnesium to form suspended microcrystals that are less likely to plate as scale on hot surfaces, with no salt and no brine line.