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How Much Salt Does a Water Softener Use?

Salt is the only real running cost of a softener. Here's a realistic estimate for your household — in bags and dollars — so there are no surprises.

Water Softener Salt Calculator

Estimate how much salt your softener uses — and what it costs — each year.

Idaho Falls hardness14 GPG
Softener type
Salt per year383pounds
40-lb bags10per year
Salt cost$77$6/mo

That's about 10 bags a year — a bag every 38 days or so.

Estimate only. Every install comes with 400 lbs of salt to start — close to a full year for many Idaho families.

Questions about salt, settings, or refills? Ask Chad.

(208) 419-7372

Why salt use varies

Your salt bill comes down to three things: how hard your water is, how much water your household uses, and how efficiently the softener regenerates. An older "timer" softener regenerates on a fixed schedule whether it needs to or not. A modern demand-initiated unit like the NuGen Fusion XT only regenerates when the resin is actually full — which is where most of the salt (and money) savings come from. Harder water means more grains to remove, which means more salt.

Not sure what size you need? Use the softener sizing calculator. Curious what hard water itself is costing you? Try the hard water cost calculator.

A year of salt, included

Every NuGen Fusion XT install from Water Softeners Plus comes with 400 lbs of salt to start — close to a full year for many Idaho families. $1,799 installed by a licensed plumber.

(208) 419-7372