Water Softeners
Salt-based softeners sized by hardness and household.
What to compare
- Grain capacity
- Hardness (gpg) × people × 75 gallons a day × 7 days, roughly.
- Service flow (gpm)
- Enough for the fixtures that run at once.
- Resin volume (cu ft)
- Capacity comes from resin; 1 cu ft is about 32,000 grains.
- Valve
- Metered valves regenerate on water used and waste less salt than timer valves.
- Connection size
- 3/4" or 1", matching the main line.
Need the numbers for your water first? How to read a water test