I am trying to help my neighbor with her in-ground(20,000gallon) pool sand filter. It has a miniscule leak that sprays a small stream of water when she runs her pump. She has tried to seal it twice with two different epoxies but it still leaks when the pump is turned on. The hole is not visible to the eye but can be identified when the water sprays out.
The second time she attempted to repair she slightly roughed up the outside of the filter with fine grit sand paper. She then cleaned it and then allowed it to thouroughly dry. Then she sealed it with some marine epoxy and let it dry for several days. When she attempted to run it last night it leaked again. Is there a good way to solve this problem short of getting a new filter? This sand filter is several years old but she would like to get by with it until a new filter is in the budget. Could we take it apart and seal it from the inside as well? Would there be a patch for this sort of problem?
The pool has not circulated for a couple of weeks and in the NC heat it has become a science project. I'd really like to help her to get it up and running and would appreciate any and all advice/ideas you could offer.