Water softener leaking in Las Vegas? Stop it, then trace it
A puddle by the softener is worth dealing with the same day. Here's how to stop the water, find where it's coming from, and tell a real fault from normal recharge noise.
First move: the bypass valve
Before you look for the cause, turn the softener’s bypass. Pentair’s manual says the bypass valve is there for emergency leaks, service calls and outdoor watering; Morton’s puts it simply: it shuts water off to the softener while the house pipes stay full. Turn the handle or push the stem to “bypass,” and the leak at the softener should slow to a stop.
The Southern Nevada Water Authority suggests the same move to confirm a leak is really the softener: put it in bypass, then look at the flow indicator on your water meter. If the indicator stops moving, the leak was in the softener. If it keeps moving, the water is going somewhere else in the house, and the softener is off the hook.
Where the water is coming from
Dry everything with a towel, put the water back on through the softener, and watch. The first spot to get wet is usually the source.
Leaking from the drain line
The drain hose carries water away only during a recharge. Look for a loose hose clamp at the valve, a split in the hose, or a hose end that has slipped out of its standpipe. A kinked or blocked drain line can also push water out where it doesn’t belong: WaterBoss lists a restricted, frozen or pinched drain line as a cause of excess water in the brine tank.
Brine tank leaking or leaking from the overflow
The brine tank holds the salt and the water that dissolves it. If water is spilling from the small elbow on its side, that’s the overflow doing its job. WaterBoss says the overflow line is there to carry off excess water if the tank fills with too much or the softener malfunctions. So an overflow leak is a sign the tank is overfilling, not a cracked tank.
Pentair’s guide gives the usual reasons for too much water in the brine tank: the valve isn’t drawing brine out, the brine refill flow control is missing or the wrong size, or there’s a leak between the rotor and seal disk inside the valve. WaterBoss adds a plugged injector and a sticking refill valve. Two other things to check:
- The drain hose and the overflow hose should run separately. WaterBoss and GE both say not to join them.
- The overflow line works by gravity, so it has to run downhill to its drain all the way.
Leaking during regeneration
If it only leaks while the softener is recharging, recheck the drain clamp and the drain line’s route. Water from the valve body during a recharge points to worn seals, a parts job.
Resin tank leaking from the bottom or the top
At the top, where the control valve screws into the tall tank, a leak is usually a seal or O-ring. Pentair lists a leak at the riser tube among its causes. At the bottom, check first that water isn’t simply running down from the top. A real crack in the tank itself can’t be patched; the tank has to be replaced.
The fittings at the loop
Where your pipes meet the bypass valve, clips and O-rings hold the joint. GE says to turn off the water and open a tap before you pull a clip, or you can damage it. It also warns that leaks may not show straight away after installation, so recheck 24 hours after the first recharge. If yours was just installed, see our guide to the water softener loop in Las Vegas for how those connections go.
Las Vegas garage heat and your softener’s plastic
The National Weather Service’s normal July high for Las Vegas is 104.5°F, and the valley hit a record 120°F on July 7, 2024. A garage usually isn’t air-conditioned, and makers set limits below those numbers: Pentair’s whole-house softener is rated for 40 to 100°F, and Clack’s WS1 control valve for 40 to 110°F. Morton and GE both warn that strong sun can warp a softener’s plastic parts.
We found no published garage temperatures for the valley. Still, if your softener sits by a sunny wall or an open door, check its hoses for cracks and its clips and O-rings for wear each year. Heat also matters more if your softener is outside; see outdoor water softener in Las Vegas.
Noises: what’s normal and what isn’t
If you’re asking why your water softener is making noise, the timing tells you most of it. Whirlpool’s softeners come set to recharge at 2:00 a.m., and Pentair calls that time “good for most households.” Morton says a recharge takes about two hours. So a softener making noise at night, in that window, is usually just working.
- Hissing or rushing water: water flowing to the drain during a recharge. GE lists this as normal.
- Clicking or a short motor hum: the control moving its valve from one stage of the recharge to the next.
- Water running long after the recharge window: not normal. Pentair’s guide links constant flow to the drain to a failed drive motor, control board or switch, or a valve out of step with its timer.
When it’s time to replace
Whirlpool and EcoWater both put a softener’s typical life at about 10 to 15 years. A leaking seal on a young softener is a repair. A cracked tank, a failed control valve or resin beads showing up in your water on an older one is the point to price a replacement. The Las Vegas Valley Water District says orange or brown beads in the water, sometimes called “fish eggs,” come from a softener’s media breaking through.
For checks beyond leaks, our Las Vegas softener repair and service guide covers salt bridges, settings and calling for service. Afterwards, confirm your softener settings for Las Vegas didn’t reset, and stick with the salt your manual names (see buying softener salt in Las Vegas).
Work out the right softener for your home
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1. Who supplies your water?
2. How many people live in your home?
What the dial setting means
This is the number to key into your softener's control head (the box on top of the tank) where it asks for water hardness, often shown as "Hardness" or "gpg". It is how the softener knows how much hardness it is taking out of each gallon.
When the resin inside is full of minerals, the softener recharges: it washes the resin with brine from the salt tank and sends the minerals down the drain. For your household that works out to about every 8 days, and it happens automatically.
Too low a number lets hard water through between recharges. Too high a number makes it recharge sooner than it needs to, using extra salt and water.
If the leak ends with a new softener, size it for your household now, about 32,000 grains, rather than copying the old unit's label.
The water district publishes one figure for the whole valley; your street can differ a little. Source: Las Vegas Valley Water District, water quality summary, 2026 (2025 data).
We don't make, sell or install water softeners or filters. Every hardness figure comes from the water utility's own published report, not from us or a seller.
How this figure was measured
Who published it
What the figure is
How we use it
Sources for this page
- Southern Nevada Water Authority · leak-check advice on its website · undated · using the bypass and water meter to find a softener leak.
- Las Vegas Valley Water District · water quality questions page · undated · resin beads in tap water.
- National Weather Service Las Vegas · temperature normals and records · 1991–2020 normals, records through 2024 · July normal high and record high.
- Pentair · whole-house softener manual · 2020 · bypass use, temperature range, troubleshooting causes, recharge time of day.
- WaterBoss · owner’s manual · 2020 · overflow line, brine tank troubleshooting, separate drain and overflow lines.
- GE Appliances · softener owner’s manual · 2023 · clip removal, 24-hour leak recheck, normal recharge sounds, sun damage.
- Clack Corporation · control valve service manual · 2025 · valve temperature range.
- Morton water softeners · installation and operation manual · 2024 · bypass purpose, recharge length, sun damage.
- Morton Salt · softener questions page · undated · how often softeners typically recharge.
- Whirlpool Water Solutions · owner FAQ · undated · 2:00 a.m. default recharge and typical lifespan.
- EcoWater Systems · comparison article on its website · undated · typical lifespan.
Questions we get asked
- Why won't my water softener stop draining?
- A recharge sends water to the drain for roughly two hours. If it runs much longer, Pentair's troubleshooting guide points to a failed drive motor, control board or switch, or a valve that is out of step with its timer. Those need a service call.
- How do you fix a water softener that is full of water?
- High water in the brine tank usually means the softener isn't drawing the brine out. Check the drain line for kinks, then clean the brine line and injector. If it still fills, the refill valve or a seal may be at fault.
- How much does it cost to replace the resin?
- No official figure is published for Las Vegas. Get a written quote, and compare it with the price of a new softener if yours is near the end of its life.
- Why is my softener making a high-pitched squealing sound?
- None of the manuals we read describe a squeal. A rush of water to the drain during a recharge is normal, per GE. A squeal or grinding outside recharge time is worth a call to a service technician.
- Should a water softener run every night?
- Usually not. Morton Salt says its softeners typically recharge every 3 to 7 days. One that runs every night may be set for harder water than you have, or be too small for the household.