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Softener Guides Answers Built From the Data
The questions asked most on r/WaterTreatment and r/Plumbing, answered from certification records and manuals.
Best Water Softeners
Picks by need, ranked on certified efficiency, published salt data and flow.
Best Salt-Free Conditioners
Three TAC units compared on limits, flow and what their scale claims rest on.
Best Whole-House Filters
Two city-water filters, and why “tested to” isn’t certified.
Grain Capacity and Salt Dose
Why a 40,000-grain softener can be a 17,300-grain softener, and which number to size with.
Salt-Free vs Salt-Based
What each one does to hard water, what can be certified, and who each suits.
Water Softener Sizing
Hardness × people × gallons, step by step, with a worked example.
Ready to size one? The calculator runs salt per year for every softener with a published dose table.