Leak Detection Dye Test

The dye test is a quick and easy test that can be completed by anyone. It takes a skilled eye to spot a small leak, however larger leaks can be witnessed by most anyone. Special dye can be purchased from pool supply stores in a syringe for easy application to the suspected leak area. As a quick and easy replacement for this dye you can use either red food coloring, or the red dropper liquid from old swimming pool water chemistry kits.

The dye is injected in the water in tiny amounts directly adjacent to suspected leak areas. If the water is relatively calm, the dye will float casually where you have squirted it. If a leak is present the dye will be pulled from its casual floating position down into the leak.

Please note that to test a return gasket for example, you would slowly and carefully submerge your arm trying to disturb the water as little as possible and squirt the dye to within an inch of the suspected leak. If a leak is present the dye will gently float back and forth with the motion of the water, and you will see it begin to disappear into the leak.

Although this is a good preliminary check that can be preformed by anyone, it is a low tech precursor to far more reliable testing methods such as pressure testing and require a keen, often skilled eye to interpret test results accurately.

The menu on the right is a chronological step by step process to determine where a swimming pool is leaking. This website is written as a readthrough technical assistance guide for locating leaks. When you believe you have identified where the pool is leaking you need to go to our sister website to see pictures and learn more about the actual swimming pool leak repair process.