Hard Water & Filtration
Water softener installation
A water softener removes the calcium and magnesium that make water hard, which protects water heaters, fixtures and appliances from scale. A plumber sizes the unit to your household's water use and measured hardness, connects it at the softener loop or main line, and routes the drain correctly.
- Same-day service when a plumber is available
- Licensed local plumbers
- Quote before work
Hard water runs through most of the Southwest, Texas, Florida and much of the Midwest. You see it as white crust on faucets and shower glass, but the expensive damage happens where you can't see it: scale on water heater elements and tank bottoms, in tankless heat exchangers and in dishwasher valves.
Many homes built since the 1990s in hard-water areas have a pre-plumbed softener loop in the garage or basement, which makes installation simpler. Older homes may need a loop added at the main line, with a bypass so outdoor hose bibs and irrigation stay on unsoftened water. Homes on private wells usually need a water test first, since iron, manganese or sulfur change what equipment fits.
Water softeners at a glance
- Typical visit
- Half a day when a loop exists; longer when one must be added
- Why it matters
- Scale shortens water heater and fixture life
- Permit
- Usually not required for a like-for-like swap; new main-line work may need one
- Pairs with
- Reverse osmosis for drinking water
Signs you need water softeners
- White or tan crust on faucets, shower heads and glass
- Spots on dishes even with rinse aid
- Water heater popping or rumbling as it heats
- Soap and shampoo that don't lather well
- Short-lived faucet cartridges and toilet fill valves
How the plumber handles it
- 1
Test and size
The plumber tests hardness at a tap and asks about household size and water use to size the grain capacity and regeneration setting.
- 2
Plan the connection
They use the existing softener loop if there is one, or cut in a loop with isolation and bypass valves at the main line.
- 3
Drain and overflow
The regeneration drain gets an air gap into an approved receptor, which is a code and sanitation requirement, not an option.
- 4
Program and check
The unit is programmed for your hardness, the system is checked for leaks, and you're shown how to bypass it and add salt.
What affects the cost
Prices depend on what the plumber finds, so the plumber quotes on site. These are the main factors:
- Grain capacity and control type (timer vs. demand-initiated)
- Whether a softener loop already exists
- Drain routing distance to an approved receptor
- Removal of an old unit
- Adding an RO system for drinking water at the same visit
What you can do, and when to stop
Safe to do yourself
- Add salt and keep it above the water line in the brine tank
- Break up a salt bridge with a broom handle
- Put the unit in bypass if it leaks
Call a plumber
- Cutting into the main line to add a loop
- Running the drain line straight into a sewer pipe without an air gap
Frequently asked questions
How do I find out how hard my water is?
Your water provider's annual water quality report (the Consumer Confidence Report) lists hardness, often in grains per gallon or mg/L. Above about 7 grains per gallon (120 mg/L) is generally considered hard. On a well, a plumber or lab can test it.
Do I need a softener if I have a water heater with an anode rod?
Yes, they solve different problems. The anode rod protects the tank from corrosion, while a softener keeps scale from building up on the elements and tank bottom.
Can a softener feed my irrigation?
It shouldn't. Softened water adds sodium to soil, so a plumber normally keeps hose bibs and irrigation on the hard-water side of the bypass.
How long does a typical water softener last?
Most residential water softeners last 10 to 15 years with regular salt replenishment and annual cleaning of the brine tank. High chlorine or iron in municipal water can wear down the resin bed faster.
What is the difference between salt-based and salt-free systems?
Salt-based softeners use ion exchange to physically extract calcium and magnesium minerals. Salt-free conditioners alter mineral crystallization so scale does not stick to pipes, but they do not reduce measured hardness.
How much salt does a household typically use?
An average family of four uses about one 40-pound bag of salt per month, depending on daily water usage, regeneration frequency, and initial water hardness levels.
Where to get water softeners
By state: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
Need water softeners?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.