24/7 — Emergency Leak Detection Available Day or Night(951) 299-3473

Pool Skimmer Leaking? Signs, Tests and Fixes for Murrieta Pools

If your pool keeps dropping and stops right around the middle of the skimmer opening, the skimmer is the first place to look. It is the most common leak point on a gunite pool. Call (951) 299-3473 any time.

A skimmer leak is usually a small, fixable crack, but it rarely fixes itself. Our pool leak detection in Murrieta visit confirms the spot with dye and pressure tests before anything is cut.

Why do pool skimmers leak?

Skimmers leak because the plastic skimmer body and the concrete pool shell move differently. Heat, ground settling and the deck shifting over the years open a gap where the skimmer throat meets the plaster or tile. Cracks in the skimmer body, a worn lid or faceplate gasket, and a cracked suction pipe under the skimmer are the other common causes.

In Murrieta, summer heat swings, expansive soil on some hillside lots and the occasional earthquake all add movement. Pools from the 1980s and 1990s in Bear Creek, Los Alamos Hills and Copper Canyon are often on their original skimmers. We also offer leak detection in Temecula for pools and homes just south of Murrieta.

Graphic of the signs and fixes for a leaking pool skimmer in Murrieta
Graphic of the signs and fixes for a leaking pool skimmer in Murrieta

What are the signs of a skimmer leak?

  • The level stops at the skimmer. If you let the pool drop and it stops partway down the skimmer opening, the leak is likely in the throat or body.
  • A crack where the tile meets the skimmer. A thin line or gap at the skimmer mouth is a classic sign.
  • Damp deck behind the skimmer lid. A wet patch or settling around the lid can mean water is escaping below.
  • Air in the pump basket. A crack in the suction line under the skimmer can pull in air and make the pump lose prime.
  • Losing more than evaporation. Our bucket test shows whether the pool loses more than the sun and wind take.
Where the crack isWhat it usually means
Gap between skimmer throat and plasterShell and skimmer pulled apart, needs sealing
Crack in the skimmer bodyPatch or skimmer replacement
Under the skimmer, pump loses primeCracked suction line or fitting
Deck cracked around the lidDeck movement, may have cracked the skimmer

How do you test a skimmer with dye?

Turn the pump off so the water is still. Squeeze a small amount of leak dye, or a few drops of food coloring, right next to the crack or gap at the skimmer throat. If the dye gets pulled into the crack instead of drifting, water is escaping there. Test the sides, the bottom of the throat and the joint at the tile.

  1. Turn the pump and any cleaner off, and wait 10 minutes for the water to settle.
  2. Remove the skimmer lid and basket.
  3. Release dye slowly near each joint and crack.
  4. Watch for dye that is pulled in or disappears.
  5. Note the spot and take a photo.

A pressure test of the suction line is the other half. That needs plugs and gauges, so it is part of a professional pool leak test.

Have a leak? Don’t wait for it to get worse.

Our technicians are standing by 24/7 with the equipment to find your leak fast. No unnecessary digging, no guesswork.

How is a skimmer leak fixed?

A gap at the throat is usually sealed with flexible pool putty or a skimmer foam made for underwater repairs. A cracked skimmer body can sometimes take a fitted insert or patch. If the body is badly cracked, the deck around it is cut and the skimmer is replaced, then the deck and coping are patched. A cracked suction line is repaired after the leak spot is located.

Pool leak detection in Murrieta usually costs about $250 to $650, and repairs start from about $300 depending on the fix. You get the price before any work starts. If water shows up at the equipment instead, see our pool equipment pad leak guide.

Can a skimmer leak damage the deck or yard?

Yes. Water escaping behind the skimmer soaks the soil under the deck. Over time it can wash out the base, crack the deck and tilt the coping. On a hillside lot, it can soften soil near a slope or retaining wall. Finding it early keeps the repair to one small spot.

Frequently asked questions

How do I know if my pool skimmer is leaking?

Let the pool drop and see where it stops. If it stops partway down the skimmer opening, or dye is pulled into a crack at the skimmer throat, the skimmer is likely leaking.

Can a skimmer leak be fixed without draining the pool?

Usually yes. Throat gaps and small cracks are sealed with underwater putty or foam. Full skimmer replacement lowers the water only below the skimmer.

Why does my pool pump lose prime?

A crack in the suction line under the skimmer can pull in air. A loose pump lid or low water level can do the same.

How much does pool leak detection cost in Murrieta?

Pool and spa leak detection in Murrieta usually costs about $250 to $650. Repairs are priced separately.

Prices are approximate estimates for planning. Your final price depends on your property and is confirmed before work begins.

Ready to find your leak?

Our technicians are standing by 24/7 with the equipment to find your leak fast. No unnecessary digging, no guesswork.

Call Now — (951) 299-3473