Pool renovation leak detection

[JThein]

Hi everyone.

I am in the middle of a pool renovation, equipment changeout, piping replacement, liner etc. I am getting ready to close for the winter and pick up next spring and I have water in the trench next to my pool steps. I think I have a leak. I was in the pool all day yesterday in a wet suit with leak detection dye. I can’t find anything. Any other way to find a leak. Could it be ground water. The trench is about 4 feet deep. I am about two blocks from the bay. Any suggestions would help.

 

[ajw22]

Test the water in the trench for CYA. If it has CYA equal to your pool water then it confirms the water came from your pool.

Do you have a K-2006C or TF100 test kit?

Or test for salt level if you have a K-1766 Salt test Kit.

 

[JThein]

Test the water in the trench for CYA. If it has CYA equal to your pool water then it confirms the water came from your pool.

Do you have a K-2006C or TF100 test kit?

Or test for salt level if you have a K-1766 Salt test Kit.

I haven’t put any chemicals in it yet this year as the liner was just changed out. I am going to go to the store and pick up salt and put in the pool. I am going to pump the water out of the hole and then wait a couple of days and test both waters for sale. This was a good idea I didn’t think of. Thanks!

 

[ajw22]

Is your pump running to dissolve salt or stabilizer?

I think putting 30 ppm of stabilizer/CYA in the water is easier and less expensive then 2000 ppm of salt.

 

[JThein]

Is your pump running to dissolve salt or stabilizer?

I think putting 30 ppm of stabilizer/CYA in the water is easier and less expensive then 2000 ppm of salt.

Yes. My pump is running as I was renovating my whole pool. So I added the salt and unfortunately a couple days later the water is testing with salt in it. I was going to backfill and winterize this weekend but I am just going to hold off on backfilling around the step. I will deal with it next season.

I was in the pool this weekend on a wetsuit, snorkel and leak detection dye and I could find anything.

Any ideas now that I have confirmed that it is leaking? Checked all the screws and seals around the step.