Water softener installation
The right size and the right setting matter more than the brand name.
Installing a water softener in the Sioux Falls area starts with knowing which water you have. City of Sioux Falls water, Lewis and Clark water, Brandon's newly softened supply, rural water and private wells all differ, and a softener should be sized and set for the one coming into your house.
Signs it's time for a softener
- Chalky crust on faucets and showerheads
- Spots on dishes and glass
- Soap scum that's hard to clean
- Water heater noise or lost efficiency
- Dull, stiff laundry
- Scale in kettles and humidifiers
Why hardness varies so much here
The City of Sioux Falls 2025 water report lists a softener setting of 15 grains for city-treated water and 10 grains for Lewis and Clark water. Harrisburg buys all of its water from Lewis and Clark. Brandon's expanded plant now uses reverse osmosis on part of its water, which a trade publication reported brings hardness down to about 12 grains. Rural homes depend on their system or well.
What a good install includes
- A test at your tap for hardness, and iron if you're on a well.
- Sizing from hardness, household size and water use.
- Plumbing with a bypass valve and a drain line with an air gap; lawn spigots usually stay on hard water.
- Programming to your measured hardness and a demand-based schedule.
What affects the cost
Capacity, valve type, single or twin tank, any pre-filter, how much re-plumbing the spot needs, and whether you add an RO tap. The company you're connected with quotes after seeing your setup. We don't set prices.
Where we connect you with help
Common questions
What size softener does a Sioux Falls home need?
It depends on hardness, household size and water use. City water at 15 grains needs more capacity than Lewis and Clark water at 10 grains for the same family.
Who can install a softener in South Dakota?
The South Dakota Plumbing Commission issues water conditioning contractor and installer licenses. Ask the company which license it holds.
Should outdoor faucets be softened?
Usually not. Leaving hose bibs on hard water saves salt and keeps softened water off lawns and gardens.
Related services
- Water softener repair
- Water softener replacement
- Iron and sulfur filters
- Reverse osmosis drinking water
More background: Sioux Falls hard water guide.
Scale on everything? Softener not keeping up?
Call and get connected with a water treatment company that works in Sioux Falls and nearby towns.