Pool leak update
What a nightmare!
I have now proceeded to chase this leak from skimmer, around half the deep end radius, all the way to light fixture. It appears to be concentrated around the shell.
I drained pool inch below light, exposed entire shell and skimmer approx. 3'wx7'd i was getting a minimal amount of water at bottom of hole, thought it was just residual leftover from leak when pool level was closer to full, and leak was much more prominent. So I reconnected plumbing, filled pool to skimmer, all the while looking for any measurable increase of water in said hole. To which there wasn't.
Until this morning!,
I couldn't see any difference in pool level from night before? but the hole had a good 1'-1 1/2' of water in it. So I pumped it out and began chasing leak around shell, At one point I was convinced the leak was high up, like tile level,
I was finding water just a few inches below deck. but the deeper I dug, the deeper the leak would seem to be?
i would dig right against shell it was if somebody turned a spigot on? And I was like, ok the leak is right here close. but could not find source?
The process slowed because as I got close to niche, I ran in to a gunite "footing", similar to that of the skimmer? A "beefed up" section if you will?
Q: Is this typical? in "pool construction"? To beef up area around center of deep end(8') or around niche?
Also I have a return and a water feature line(2") that run near by, so I thought one of these might be source of leak but, I looked closely at leak, and i saw no difference in volume with pump on or pump off?
Any thoughts or ideas would be greatly appreciated.
Thanks, Parris