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Why Does My Water Taste Salty After a Water Softener?

By · Updated October 2026

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Quick answer: softened water can taste a little different, but GE says it shouldn’t have a distinct salty taste. A faint, steady taste can be the normal sodium that softening adds, which is more noticeable with very hard water. A clearly salty taste, especially one that comes and goes or is worst after the softener regenerates, usually means brine wasn’t rinsed out of the tank. The makers’ manuals point to the same few causes: a kinked or blocked drain line, a plugged injector (nozzle and venturi), low water pressure, or too much water in the salt tank. Check those, run a full regeneration and flush a cold tap. If it still tastes salty, call for service.

What you’ll need: a flashlight to check the salt tank, your softener’s manual, and a water pressure gauge to rule out low pressure.

How we wrote this: we haven’t tested these softeners ourselves. The causes and fixes come from the troubleshooting tables in A. O. Smith’s, Clack’s, Whirlpool’s and Pentair’s manuals and GE’s support pages.

Is a salty taste normal?

A softener doesn’t add salt to your water. It swaps the calcium and magnesium in your water for sodium, and the salt in the tank is only used to recharge the resin. NDSU Extension says softening adds about 8 mg/L of sodium for every grain per gallon (gpg) of hardness removed. EPA says people sensitive to taste can notice sodium at 30 to 60 mg/L, so with hard water some people notice a slight taste. That’s normal; brine in the water isn’t.

Probably normal sodiumProbably leftover brine
TasteFaint; a little different from your old waterDistinctly salty or briny
WhenThe same all the timeComes and goes; often worst first thing in the morning, after an overnight regeneration
StartedWhen the softener was installedSuddenly, on a softener that tasted fine before
Salt tankNormal water level and salt useMore water than usual in the tank

Whirlpool, Rheem and Fleck softeners regenerate at 2:00 a.m. by default (see regeneration). Sodium figures from NDSU and EPA; for how much sodium your water gets, see is softened water safe to drink.

Salty water checker

Tell us what you’re seeing to find out whether it’s normal or a fault, and what to check first.

Answer the questions to see what to check.

How it works: sodium added is your hardness × 8 mg/L per gpg (NDSU), compared with EPA’s 30 mg/L taste threshold. Potassium chloride adds no sodium. Signs of a fault and the checks come from the A. O. Smith, Clack, Whirlpool, Pentair and GE troubleshooting guides. 1 gpg = 17.1 mg/L.

What causes salty water from a softener?

During regeneration, the softener draws brine from the salt tank through a small injector, called a nozzle and venturi on Whirlpool and Rheem models. Rinse cycles then flush the leftover brine out of the resin tank to the drain. A. O. Smith describes its second backwash as “an additional rinse to remove any leftover brine solution.” If brine is drawn too slowly, or there’s more of it than the rinse can clear, some reaches your taps. Clack’s manual calls this “residual regenerant being delivered to service.” For the full cycle, see how a water softener works.

CauseWhat the makers say
Plugged injector (nozzle and venturi)A. O. Smith lists it first for salty water and says to replace the injector screen, nozzle and throat. Clack and Whirlpool list it for too much water in the salt tank.
Low water pressureClack says pressure must stay at least 25 psi; A. O. Smith says 30 psi. Whirlpool says low pressure may disrupt brine draw and gives 20 psi as the minimum.
Kinked or restricted drain lineGE says a kink can stop the softener regenerating properly. Clack and A. O. Smith list a restricted drain line or drain flow control.
Too much water in the salt tankA. O. Smith lists it under salty water and says to check the water level against the salt setting. Clack lists the refill setting, a plugged injector and a restricted drain line.
Restricted or loose brine lineA. O. Smith: remove the restriction, replace a crimped line and check fittings for loose connections.
Wrong injector sizeClack says to fit the correct size for the application; a dealer can check yours.
Pressure drops from the supplyA. O. Smith suggests a check valve on the softener’s inlet line, after checking local plumbing codes.
A recent cleaningWhirlpool says that if you notice a taste after using its cleanser, run another regeneration and then a cold tap until the water tastes normal.

From the troubleshooting tables in the A. O. Smith AO-WH-SOFT owner’s manual, Clack’s WS1 service manual, Whirlpool’s WHES48 manual and GE’s support pages.

How to fix salty softened water

  1. Flush it out. Run a cold tap near the softener for a few minutes. If you just used a softener cleaner, Whirlpool says to run another manual regeneration first, then the cold tap until the water tastes normal.
  2. Check the drain line. Follow it from the softener to the drain and straighten any kinks or crimps, as GE suggests. Make sure nothing blocks the end. Whirlpool also says the drain line and the salt tank’s overflow line must run separately, not joined with a tee.
  3. Look in the salt tank. Shine a flashlight in and compare the water level with what’s normal for your softener. A. O. Smith expects roughly 2 to 12 inches of water in its tanks. Much more than usual points to the injector, drain line or refill setting. Our brine tank guide covers a tank that’s full of water.
  4. Test the water pressure. Screw a pressure gauge onto an outdoor tap or the tap nearest the softener. If it’s below your softener’s minimum (20 to 30 psi depending on the maker), raise the well pump’s pressure setting or call a plumber.
  5. Clean the injector. Put the softener in bypass and follow your manual. On Whirlpool cabinets, unscrew the nozzle-and-venturi cap, lift out the screen and disc, wash the parts in warm soapy water, then reassemble with the gasket holes lined up and tighten the cap by hand.
  6. Check the settings. A. O. Smith says to check the tank’s water level against the salt setting, and Clack lists the refill setting as a cause of too much water in the tank. Our settings guide walks through the menus. GE says some models let you lengthen the rinse, up to 10 minutes in 1-minute steps, if water tastes salty after regeneration.
  7. Regenerate and retest. Start a manual regeneration, then taste the water once it finishes. GE recommends service if it still tastes distinctly salty after a complete cycle.

If the taste is just normal sodium

If the checker says your taste is likely the normal sodium from softening and it bothers you, you have three options. NDSU suggests leaving one kitchen tap unsoftened for drinking and cooking. A reverse osmosis filter at the kitchen sink removes dissolved solids from drinking water, including the sodium a softener adds. Or switch to potassium chloride, which adds potassium instead of sodium. Some people should avoid it, though; see is softened water safe to drink.

Tool we recommend

Rule out low pressure

Watts water pressure test gauge (0950200)

A simple dial gauge that screws onto a standard hose tap, so you can read your home’s water pressure in seconds. A. O. Smith, Clack, Whirlpool and Pentair all list low pressure as a cause of brine problems.

  • Range: 0 to 200 psi (listing)
  • Connection: ¾-inch hose thread (listing)

Good to know: on a private well, pressure rises and falls as the pump switches on and off, so note the lowest reading while a tap runs.

Check price on Amazon

Frequently asked questions

Does a water softener make water salty?

No. It adds sodium, not salt: NDSU says sodium is released into the water as hardness is removed, at about 8 mg/L per grain. The water shouldn’t taste distinctly salty. If it does, brine is getting through.

Why does my water taste salty only in the morning?

Many softeners, including Whirlpool, Rheem and Fleck models, regenerate at 2:00 a.m. by default, so the first water drawn in the morning is the first water after the rinse. If that’s when it tastes salty, the rinse isn’t clearing all the brine. Work through the fixes above, starting with the drain line and injector.

Is it safe to drink salty water from a softener?

Don’t drink water that tastes clearly briny; run the cold tap until it tastes normal and fix the cause. If you’re on a sodium-restricted diet, see is softened water safe to drink for how much sodium normal softened water adds.

Can low water pressure make softened water salty?

Yes. Clack lists low water pressure as the first cause of brine reaching your taps and says pressure must stay at 25 psi or more. A. O. Smith gives 30 psi.

Why is my salt tank full of water?

Whirlpool lists a plugged nozzle and venturi, a blocked drain hose, a drain line joined to the overflow, low or high water pressure, a dirty brine float and internal valve leaks. See our brine tank guide.

Related guides

Sources