Pool Leak Detection in Cibolo, TX
Topping off the pool every few days? Find out whether it's evaporation or a leak, and get the source located in the shell, fittings or buried plumbing.
Call (210) 750-1568- Open 24/7 · Cibolo, TX 78108
- Non-invasive detection
- Repair options explained
What is pool leak detection?
Pool leak detection is a professional inspection that finds where a swimming pool or spa is losing water, whether through the shell, the fittings, the lights or the buried plumbing. Technicians use pressure tests, dye and underwater listening equipment, usually with the pool still full.
Every pool loses some water to evaporation, especially in a Texas summer. A leak is different: the water keeps dropping beyond what weather explains, you have to top up more often, and your water bill or the pool's chemistry changes. Finding the leak early protects the deck, the equipment and the soil around the pool.
Signs your pool is leaking
- Water level drops more than nearby evaporation explains
- You add water more than once or twice a week
- Wet or soggy ground near the pool or equipment
- Cracks or gaps in plaster, tile or the deck
- Air bubbles in the return jets
- Algae returning soon after treatment
- The automatic fill runs constantly
- Higher water bill in pool season
Not sure? Try the bucket test for pool leaks first. It takes a day and a bucket.
Where pools leak
| Area | Typical problem |
|---|---|
| Skimmer | Separation or cracks where the skimmer meets the pool shell |
| Return and drain fittings | Worn seals or cracked fittings in the wall or floor |
| Pool lights | Leaks through the light niche or conduit |
| Shell and tile line | Cracks in plaster, gunite or tile grout |
| Underground plumbing | Cracked suction or return lines between the pool and equipment |
| Equipment pad | Pump seals, filter, heater or valve leaks |
How pool leak detection works
- Review the symptoms. How fast the level drops, and whether it changes with the pump on or off.
- Inspect the equipment. Pump, filter, heater and valves are checked for visible leaks.
- Pressure test the lines. Each suction and return line is isolated and pressurized to find a failing pipe.
- Dye test the shell. Colored dye released near suspect spots is drawn into any crack or gap.
- Listen underground. Acoustic equipment pinpoints leaks along buried lines so only a small spot is dug.
Pool leak detection in Cibolo is usually done with the pool full, so you don't need to drain it first. Have a portable hot tub instead? See hot tub leak detection.
What affects pool leak detection cost?
- Pool size and type: plaster, vinyl or fiberglass, and attached spa
- Number of plumbing lines to pressure test
- Whether a diver is needed for deep-end fittings
- Repair needed after the leak is found
- Deck or landscaping that must be opened to reach a line
Ask what the detection visit includes (equipment, plumbing, shell) and whether any repair is quoted separately.
Protect the area around your pool
A leaking pool doesn't just waste water. Saturated soil can undermine the deck, and in clay soil it can shift slabs nearby. If you also see a high water bill outside pool season, the problem may be in the house plumbing instead. Our Cibolo leak detection page covers that.
How much does pool leak detection cost in Cibolo?
Pool leak detection in Cibolo usually costs about $250 to $600, depending on pool size, the number of plumbing lines and whether a spa is attached. Small repairs found during the visit, like a light niche or fitting seal, often add $150 to $500. Buried line repairs cost more.
| Pool job | Typical range |
|---|---|
| Pool leak detection (pool only) | $250 – $450 |
| Pool + attached spa detection | $350 – $600 |
| Seal a fitting, skimmer or light niche | $150 – $500 |
| Repair a buried suction or return line | $500 – $2,500 |
| Equipment pad leak (pump seal, valve) | $150 – $600 |
Ranges are approximate 2026 estimates for the Cibolo and northeast San Antonio area, gathered from typical local pricing. They are not quotes. The provider gives you a price before any work starts.
Repair or replace pool plumbing?
One cracked fitting or a short section of buried pipe is almost always repaired. If the pool's lines have failed more than once, or several lines lose pressure in the same test, re-plumbing that run can be the better long-term fix. Ask the technician to show you the pressure readings for each line.
What you can safely do yourself
You can run the bucket test, check the equipment pad for drips and watch whether the level drops faster with the pump on or off. Don't dig near the pool to look for a line. Pool plumbing is shallow and easy to crack, and buried utilities may share the yard. For leaks inside the house rather than the pool, start with general leak detection in Cibolo, TX.
Frequently asked questions
How much water loss is normal for a pool?
Pools lose water to evaporation, and in hot, dry, windy Texas summer weather that loss can be noticeable. The easiest way to tell evaporation from a leak is the bucket test in our pool leak or evaporation guide.
Where do pools usually leak?
Common spots are around skimmers, return fittings, main drains and lights, cracks in plaster or tile lines, and the buried suction and return lines between the pool and the equipment pad. Equipment like the pump, filter and valves can leak too.
Does pool leak detection mean draining the pool?
No. Most detection is done with the pool full. Some methods, like dye testing and underwater listening, actually require water in the pool.
Should I keep running the pump if I think the pool is leaking?
Note whether the water level drops faster with the pump on or off. That difference tells a technician whether to look at the pressure side of the plumbing or the shell. Keep the water above the skimmer so the pump doesn't run dry.
Can a pool leak cause damage to my yard or house?
Yes. A steady leak can saturate the soil around the pool, undermine the deck, and add to your water bill. In clay soil, wet ground can also shift.
Is pool leak repair done the same day?
Small repairs, such as sealing a fitting or a light conduit, can sometimes be done during the visit. Buried line repairs or shell work usually need a separate appointment.
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