With Las Vegas water at roughly 16 to 17 grains per gallon of hardness, according to the Las Vegas Valley Water District, a water softener here does a lot of work. When it’s running well, you barely think about it. When it isn’t, the scale, spots and stiff laundry come back quickly.
The good news is that most softener problems give clear warning signs, and many can be fixed with service rather than a new system. Here are the signs to watch for, what usually causes them and how to tell whether it’s time to repair or replace.
Sign 1: Spots, scale and poor lather are back
This is the most common sign of trouble, often called hardness bleed-through. The Water Quality Association defines soft water as less than 1 grain per gallon of hardness, so softened water should test close to zero. If you’re seeing fresh crust on faucets, cloudy glassware, soap that won’t lather or laundry that feels stiff again, hard water is getting through.
A simple hardness test of the softened water is the quickest way to confirm it. Our guide on how to test for hard water walks through the options. Common causes include:
- The brine tank has run out of salt, or a salt bridge is keeping salt from dissolving
- The bypass valve was left in the bypass position after plumbing work
- The hardness setting is too low for Las Vegas water
- The resin is fouled, worn out or damaged
- A control valve, injector or brine line problem is keeping the unit from regenerating
Sign 2: The salt level isn’t going down
If you keep checking the brine tank and the salt never seems to drop, you may have a salt bridge. That’s a hard crust that forms above the water and keeps salt from reaching it, so the softener regenerates with weak brine or none at all.
Salt producer Cargill recommends checking your softener about once a month and keeping salt at least half full without overfilling. To fix a bridge, carefully break up the crust so it drops into the water below. The WQA’s softener best-practice guide notes that potassium chloride forms bridges more readily than sodium chloride, so homes using potassium should check more often.
A related problem is salt mushing, where salt breaks down into fine granules that don’t dissolve. Diamond Crystal warns that salt mush can clog the intake at the bottom of the brine tank. If you see sludge at the bottom, the tank should be cleaned out. If the water level in the brine tank is unusually high, or the problem keeps coming back, it’s time for a service call.
Sign 3: The settings don’t match Las Vegas water
A softener that’s set wrong may seem broken when it’s really just misconfigured. This is especially common in homes that changed owners. The LVVWD’s annual Water Quality Report tells homeowners to set softeners based on local hardness of 280 ppm, or 16 grains per gallon. The City of Henderson recommends a setting between 16 and 19 grains.
Other settings to check:
- Household size and water use. A new baby, a roommate or a pool fill can change how often the softener needs to regenerate.
- Time of day. Timer models regenerate on a schedule. If the clock is wrong, often after a power outage, the unit may regenerate while you’re using water.
- Regeneration type. Penn State Extension notes that timer models regenerate whether the resin needs it or not. The WQA recommends demand-initiated models to save salt and water.
Sign 4: Resin beads in your water or a drop in pressure
Tiny beads in your faucet aerators, toilet tanks or water are a red flag. The LVVWD says that orange or brown beads in the water usually mean filter media breakthrough from a water softener, and recommends contacting a professional or the softener manufacturer. It usually means the unit needs service.
A noticeable drop in water pressure can also point to the resin. Resin manufacturer Purolite explains that damaged resin beads become weak and soft, which can increase pressure drop and reduce softening capacity.
Sign 5: Age and chlorine have taken their toll
Resin doesn’t last forever. Purolite says premium resin in a well-designed, properly operated system can run reliably for over ten years, but chlorine and other oxidizers attack the resin and shorten its life. Its rule of thumb is that each 1 ppm of chlorine can cut resin life roughly in half.
That matters here. The LVVWD adds chlorine to protect the water supply, and its annual water quality report lists an average chlorine residual of about 1 ppm in the distribution system. A whole-house carbon filter ahead of the softener reduces chlorine and can help protect the resin.
Older softeners also tend to be less efficient. Penn State Extension notes that each regeneration can use about 50 gallons of water, and the WQA recommends replacing older time-clock units with demand-initiated softeners for consumers who want savings.
Repair or replace?
Service usually solves problems like salt bridges, mushy salt, wrong settings, a stuck bypass valve or a clogged brine line. Fouled resin can sometimes be cleaned, and Penn State Extension notes that resin that can’t be cleaned may need to be replaced.
Replacement often makes more sense when the softener is older and has more than one problem at once, such as worn resin plus a failing control valve, when it keeps breaking down, or when you want the salt and water savings of a modern demand-controlled system. Our Professional Series water softeners come with computerized, timer or manual control, and 100% financing is available.
Whichever way you go, a quick check of your water before and after the softener takes the guesswork out of the decision. It shows how much hardness is getting through and whether other issues, like chlorine or iron, are affecting the resin.
Frequently asked questions
How often should a water softener be checked?
Check the salt about once a month, as Cargill suggests, and look for bridges or mush. Have a technician check the settings and performance any time you notice the signs above, and follow your manufacturer’s maintenance schedule.
How long does softener resin last?
According to Purolite, premium resin can last over ten years in a well-designed system. Chlorine, iron and hot water shorten that, so Las Vegas homes benefit from carbon pre-filtration.
My softener ran out of salt. Will refilling fix it?
Often, yes. Refill the brine tank and run a manual regeneration if your unit allows it, following the owner’s manual. If water still tests hard a day or two later, something else is wrong and the unit needs service.
Not sure where your home stands? Water Quality of Las Vegas is locally owned and offers a free water analysis with same-day service available and 100% financing. Call or text 702-623-2724 any time, 24/7, or contact us online to schedule service.
