I have an 50+ year old pool which for it's age is in good shape except for a leaking return line from the shallow end skimmer. The pool is somewhat unique - kidney shape, painted concrete, copper piping, bronze return jets - so I sometimes need unique fixes.
How do you find where the leak is along the return line?
Can it be fixed without digging up the deck and yard?
If I dig, would a PVC patch work? using rubber gaskets & stainless steel tightening bands?