The skimmer is the opening at the waterline that pulls surface water and debris into your filter. Because it sits right where the pool shell meets the deck, it takes the most stress from ground movement, deck settling and Florida's heat. Cracks and separations at the skimmer are among the most common pool leaks we hear about.
Signs it's the skimmer
- The water level stops dropping at the bottom of the skimmer opening
- A visible gap or crack where the skimmer meets the tile or deck
- Wet soil or a sinking paver next to the skimmer
- Air in the pump basket when the water is low
How it's repaired
A specialist dye-tests around the skimmer throat, the faceplate and the line below it. Small cracks and separations can be sealed with flexible pool sealant or epoxy, often underwater. A skimmer that has pulled away from the shell, or a cracked skimmer body, may need to be partly or fully replaced, which means cutting out the deck around it and resetting it. That is work for a licensed pool contractor.
If the line under the skimmer is leaking, it is pressure-tested separately, since a skimmer that looks fine can still sit on a cracked pipe.
Why it matters
A skimmer leak is usually slow, which is why it gets ignored. But it leaks every hour the water is above it, and it washes out the fill under the deck right next to the pool, where settling causes the most damage.
What actually breaks
A skimmer is a plastic box set into the deck with a throat that opens into the pool. The pool shell, the deck and the skimmer body all move a little differently with heat and settling, and the joint between them takes the strain. The most common skimmer leaks are:
- Throat separation - a gap opens between the skimmer throat and the pool wall or tile.
- Cracked skimmer body - old plastic gets brittle and cracks, often near the bottom.
- Faceplate gasket failure - on vinyl and some fiberglass pools, the faceplate seal wears out.
- Leaking skimmer line - the pipe or fitting at the bottom of the skimmer cracks.
Seal or replace?
A small separation at the throat is often sealed with a flexible sealant or epoxy, sometimes underwater, sometimes with the water lowered just below the skimmer. That's a modest repair. If the skimmer body is cracked, or it has pulled loose from the shell, it may need to be replaced. That means cutting out the deck around it, installing a new skimmer, connecting it to the line, and restoring the deck and tile. That is a bigger job and should be done by a licensed pool contractor.
A skimmer that keeps separating usually points to deck movement. Ask the specialist whether the deck around the skimmer has settled. If it has, a sealant repair alone may not last.
Skimmer care that prevents leaks
- Keep the water at the middle of the skimmer opening. Running it low sucks air and stresses the pump.
- Don't stand or set heavy equipment on the skimmer lid.
- After a heavy storm, check the joint where the skimmer meets the tile for new gaps.
- If you're resurfacing or redoing pavers, have the skimmer joint checked and resealed at the same time.
How it connects to deck damage
Because the skimmer sits at the edge of the deck, a leak there washes sand out right where the deck meets the pool. Over time you may see a hairline crack running away from the skimmer, a paver that rocks, or a gap opening along the coping. Catching a skimmer leak early keeps a small seal job from turning into deck and coping repairs.
Skimmer Leaks questions
Why does my pool stop losing water at the skimmer?
When the level drops below the leak point, water stops escaping. If the loss stops near the bottom of the skimmer opening, the skimmer throat or body is the likely leak.
Can a skimmer be repaired without draining the pool?
Usually. Small cracks and separations can be sealed underwater or with the water lowered a few inches. Only a full skimmer replacement requires more work around the deck.
How long does a skimmer repair last?
A well-done seal on a stable deck can last years. If the deck around the skimmer keeps settling, the joint may separate again, and replacing the skimmer or fixing the deck may be the longer-term fix.
Areas served
Specialists we connect you with serve Cape Coral, including Cape Coral Parkway, Pelican, Yacht Club, Cape Harbour, the Northwest and Northeast Cape, and the Gulf Access canal neighborhoods, plus Fort Myers, North Fort Myers, Lehigh Acres and the rest of Lee County.