The short answer
Check the Obvious First
Start with the simplest causes. A loose or worn pump lid can spray water into the yard. A leaking filter, heater, or chlorinator also sends water onto the ground. Look for puddles, damp spots, or a constantly running pump that cycles too often.
Inspect the pool deck for cracks or gaps where water might escape. Also check the skimmer and return fittings. If you see water pooling around the equipment pad, the leak is likely in the equipment, not the pool itself. Acting quickly can prevent bigger problems.
- Check the pump lid and O-ring for damage
- Look for wet spots around the filter and heater
- Inspect the skimmer and return fittings for cracks
- Feel the ground near the pool edge for spongy areas
- Run the pump and watch for water spraying from equipment
Common Leak Sources
Cracks in the pool shell are a frequent cause, especially in older pools or those built on shifting soil. A crack can be small and hard to see, but it lets water seep into the ground. The leak may be in the floor or the walls, often near the waterline or where the deck meets the pool.
- Cracks in the gunite or concrete shell
- Tears or punctures in a vinyl liner
- Leaks in the underground return or suction lines
- Loose or broken fittings at the pool wall
- Worn gaskets on the pump or filter
Test for a Liner or Shell Leak
A simple bucket test can tell you if the pool is losing water faster than normal evaporation. Fill a bucket with pool water to the same level as the pool and place it on a step. Mark both water levels, then wait 24 hours. If the pool level drops more than the bucket, there is a leak.
For a more precise test, turn off the pump and mark the water level. Wait a few hours and check again. If the level drops when the pump is off, the leak is in the shell or liner. If it only drops when the pump runs, the leak is in the plumbing on the pressure side.
- Bucket test to compare evaporation and leakage
- Pump off test to locate shell versus plumbing leaks
- Dye test to find the exact crack or tear
- Check the water level after heavy rain to rule out overflow
When to Call the Pros
If you cannot find the leak with simple tests, or if you see water pooling in the yard even when the pump is off, it is time to call local water damage pros. They have specialized equipment like electronic listening devices and pressure testing tools to locate hidden leaks without digging up your whole yard.
The pros can also assess any water damage that has already occurred. If the leak has been running for a while, the soil under your deck or patio may be eroding. They can help you dry out the area and repair any damage to your home's foundation or landscaping.
- Electronic leak detection equipment
- Pressure testing of the plumbing lines
- Dye testing to pinpoint the leak
- Soil moisture assessment to gauge damage
- Drying and repair of affected areas
Prevent Future Leaks
Regular maintenance can help you catch small issues before they become big leaks. Check the pool equipment monthly for signs of wear, and keep the water level within the recommended range. In humid climates, seals and gaskets may wear faster, so inspect them often.
Also watch for changes in your water bill or a sudden drop in pool level. If you notice a leak, fix it quickly to avoid damage to your yard and home. A well-maintained pool is less likely to leak, and you will save money on water and repairs in the long run.
- Inspect seals and gaskets every month
- Keep the water level at the middle of the skimmer
- Fix small cracks as soon as you see them
- Monitor your water bill for unexplained increases
- Have a professional check the plumbing every few years
Talk to someone now
Phones are answered 24/7 for Daytona Beach and nearby communities.
Call Now (386) 272-5697Frequently asked questions
How can I tell if my pool is leaking or just evaporating?
Use the bucket test. Fill a bucket with pool water and place it on a step. Mark both water levels and wait 24 hours. If the pool loses more water than the bucket, there is a leak. Normal evaporation affects both equally, so the bucket test is reliable.
Can a pool leak cause damage to my house foundation?
Yes, a pool leak can saturate the soil around your home, leading to erosion and foundation settling. If you notice cracks in your walls or doors sticking, call local water damage pros to inspect. They can help dry the area and prevent further damage.
Should I turn off my pool pump if I suspect a leak?
Turning off the pump can help you locate the leak. If the water level stops dropping when the pump is off, the leak is in the plumbing. If it continues to drop, the leak is in the shell or liner. Always turn off the pump before doing any tests for safety.