How To Find A Leak In A Pool Liner With Food Coloring. Goggles, a snorkel, and leak finder dye (or red food coloring). Then, equipped with goggles, squirt a little dye in the area where you think the leak is.
Now, have a look over the following instructions: You can look for tiny holes in the liner if the pool is full of water. A greater drop in the line marked outside the bucket indicates a leak in the liner.
A structural leak is a leak in the pool wall itself.
Use this pool leak detection dye kit: The process of locating the leak might take long or fast so the best piece of advice to take is not to be in a hurry but take your time. You will only need food coloring. Afterwards, touch the pool’s floor to see if it’s squishy (this suggests that there’s a leak in the bottom of your liner) and place some drops of food coloring on the water.