Can I find the swimming pool leak myself?

When done effectively the endeavor of locating a swimming pool leak follows a systematic procedure that progresses from the clear identification of leak symptoms to the exact location of the crack, hole, or tear. While pool leak detection experts have the experience and equipment that allows this process to be performed in several hours or less, a diligent pool owner may be able to find some leaks themselves, or at least start the process that can make the leak professional’s job more efficient.

Ask questions first . . . look for leaks later

When did the pool first start leaking? Were there any notable events that happened around this time? Recent construction activity around the pool, a pet or object that fell into the pool, or extremely cold, rainy, or dry weather can all be events that may cause specific types of pool leaks.

Does the water stop leaking at a certain level in the pool? Does the pool leak more with the pump running or with the pump off? Answers to these questions can provide an indication of where the pool leak is. More leakage when the pump is running usually indicates a pressure side plumbing leak, more water loss when the pump is off is usually indicative of a suction side plumbing leak, and equal water loss usually indicates a shell or pool liner leak.

If you end up using a pool leak professional they also find the answers to these questions valuable in locating your swimming pool leak problem. They may also know when the pool was built; what type of pool it is, (vinyl liner, gunite, fiberglass, pool/spa combo), and if any repairs have been made recently. Be ready to share this information if you call.

Searching for pool leaks

If you do decide to start looking for the problem yourself, the first step is to eliminate obvious and visible leaks. Check around the equipment for evidence of leakage or moisture. Carefully check all fittings that go into or out of the pool pump, filter, or heater. Check for leaky pump lids, leaky valves, or leaky seals. Also check to make sure that your multi-port valve is not leaking water to the waste line. If it’s possible to see where this backwash line empties, check to make sure that you don’t see water flowing or dripping from here.

Underwater leaks in the pool shell or fittings can be identified with a dye test. A Dye Tester allows placement of a small amount of colorant near, (within ¼") a suspected leak. Dye will be drawn out of the pool where there is a leak. Start by testing suspect areas such as cracks in the tile or plaster, inside the skimmer, and places where return fittings, skimmers or stairs join to the pool shell or liner. Many pool cracks may be just superficial and not be a cause for concern. If a crack is leaking however and draws dye it should be patched or professionally repaired. Most dye testing can be done from the pool deck, however you will eventually have to get into the pool with a dive mask to completely inspect the shell or liner for leaks.

There are an assortment of epoxies and sealants that can be used by the do-it-yourselfer to fix a leak once found. Don't be discouraged if you can't find anything though; most pool leaks are not visibly obvious, or may be in parts of the pool, (such as the underground plumbing system or lights) that are inaccessible. A qualified pool leak professional utilizing specialized equipment should be able to find a leak anywhere in your pool within an hour or two (some complicated jobs may take longer).

Other Topics