Long time listener, first time caller.
My pool is a 20x40 concrete/gunite with a deep end and diving board. The return system consists of in-floor cleaning heads (I believe they are Caretaker). The pool was built with the house in 1999 I live in Michigan.
The issue is that my main drain is not holding pressure, and neither is one of the Caretaker zones. The pool tech has been at it for least 20 years thinks cleaning heads are more trouble than their worth. He thinks I should fill in the bad zone, and plug the main drains. He also claims that he has used a sound based leak detection system in the past and didn't find them all that effective. I know that there are speciality companies' that do this full-time, I am trying to see if anyone here has had experience with using one? In other words, how good are they?
I would really like to weigh my options for repair. If the leak is under the deck and doesn't require breaking up the pool bottom, it would be a no-brainer to have it fixed. The problem, as it stands now, is there is no way to know where the leaks are.
I know that bottom drains aren't a necessity, but I don't want to keep playing a game where I just cover up broken stuff because eventually the piping will have to be replaced anyway.
Any opinions would be appreciated.