What systems cost
Installed price ranges for softeners, filters and reverse osmosis, plus running costs.
SoftenersWater softener cost
$1,200–$3,800installed
Drinking waterReverse osmosis cost$300–$950under-sink
FiltrationWhole-house filter cost$850–$1,500installed
San JoseSoftener and filter costs in San Jose$1,200–$3,800softener
LaborSoftener installation cost$200–$500labor
Running costsSalt vs potassium cost$5–$10per bag
TestingWhat a water test costs$50–$500lab
Running costsWhat a softener costs to run$50–$150per year