Is it worth it?
Under 3.5 gpg most homes skip a softener. Above 10.5 gpg scale builds in water heaters and fixtures, and that is where one earns its keep. Your number above decides.
Home water softener help
Your softener, by the numbers.
Find out if you need one, what size, and what to set. When the water turns hard again, find the part that failed.
- 30 plain guides
- Built from valve manuals and USGS data
- Nothing to sell you
grains per gallon
gpg
Very hard. Heavy scale. Size the softener carefully and plan your salt.
Have it in ppm or mg/L? Divide by 17.1. No test yet? How to test.
Before you buy one.
The four questions people ask first, answered short. New to all this? Start with the full guide.
What does it cost?
A fair installed quote splits into the unit, the labor and the plumbing extras. A replacement averages about $1,063 to $1,387 installed (Homewyse, 2026). Then there is salt every month.
The downsides
A little sodium in every glass, a slippery feel in the shower for the first weeks, bags of salt to carry, and water you may not want for some plants.
Which kind to buy?
Salt-based units remove calcium and magnesium. Salt-free conditioners leave them in and only slow scale. After that, five specs decide, not the badge.
Size it by your water, not by the box.
A "48,000-grain" softener holds about 30,000 grains at the salt setting most homes use. The planner shows the real number, what to program, and what the salt will cost you a year.
Something's off? Start with what you see.
Most softener failures come down to a handful of parts. Pick the symptom and get the first thing to check before you call anyone.
- 1Pick what you see at the tap or the tank.
- 2Do the two-minute check it gives you.
- 3Open the full fix if that wasn't it.
Everything about your softener, by topic.
From the first test strip to rebuilding a valve.
8 guides
Troubleshooting
Start from the symptom and find the part that failed.
Open the guides
3 guides
Choosing and sizing
Size by your water and household, not by the number on the box.
Open the guides
5 guides
Settings and programming
What every number on the control head means and what to enter.
Open the guides
5 guides
Salt and brine
Which salt, how much, and what to do when the brine tank misbehaves.
Open the guides
3 guides
Maintenance
The monthly, yearly and every-few-years jobs that keep it working.
Open the guides
4 guides
Hard water explained
What hardness is, how to test it, and what a softener does not remove.
Open the guides
1 guide
Installing
Where it goes, what the drain needs, and what a pro costs.
Open the guides
1 guide
Living with soft water
Sodium math, plants, pets, septic systems and the first 30 days.
Open the guidesThe fixes people need most.
Where most readers land when the water turns hard or the tank misbehaves.
- Water softener leaking: shut it off, then find which of six points is failing7 min read
- Water softener not softening: a 15-minute triage before you buy a single part10 min read
- Water softener regenerating too often: five causes, ranked from most to least likely7 min read
- Brine tank full of water: what's normal at the bottom and what actually needs fixing6 min read
- Why your water tastes salty after the softener regenerates, and how to fix it7 min read
We don't sell softeners.
GrainsGone is written by a small team that reads the valve manuals, the Water Quality Association and USGS data, and the service forums, and turns them into plain steps.
30guides, each with its sources
3free tools on the pages that need them
0softeners, salt or service calls sold