Leak Detection

[JSpicuzzi]

Hi TFP!

I believe I have a leak in my in ground pool. Here are the details.
-17 x 32 rectangle pool in Michigan. One set of standard steps. One set of steps with 8 return jets. Deep end with 2 bottom drains. 2 standard returns. 1 light at deep end.
-Closing went fine. Noticed water level was lower than normal when I opened but didn't mark exactly how low (I wish I had). Memory says it was near the pool light level so that may be a clue
-Ground on the shallow side of the pool near the steps is soggy
-I lose 1 inch of water in 24 hours whether the pump is on or off
-I removed the light and tried food color test around the light housing but did not see the coloring get sucked into the housing
-Did food color test around the steps and side skimmer and bottom drains but did not see the coloring get sucked into any of these spots
-Noticed that the return near the deep end shows a thin line of tiny air bubbles...could be another clue
After reading the Leak Detection article, seems like I have two choices....
1) let the water level drop to see where the water loss stops. And/or....
2) have a pressure test performed. Do you have suggestions?

 

[PoolGate]

Try the bucket water-loss test. And if you have a saltwater chlorine generator, that is where those bubbles are coming from.

Leak Detection

A number of things can cause leaks in your pool. You can learn tricks for leak detection and how to pinpoint where your pool is losing water.

www.troublefreepool.com

 

[JSpicuzzi]

Spent some time hole hunting and I believe I found it on a seam where the wall meets the floor. There is a one inch piece of the seam with a hole the about the size of a pin head. The food color disappeared immediately. Now on to learn about best patching approach

 

[stupidsmee]

Spent some time hole hunting and I believe I found it on a seam where the wall meets the floor. There is a one inch piece of the seam with a hole the about the size of a pin head. The food color disappeared immediately. Now on to learn about best patching approach

Doing the same thing. I was thinking my light but maybe the seam. How did you find a hole that small?