Like fishingrod said, the couplings are leaky but with enough goop,( industrial polyurethane, or butyl rubber caulk) is what Id use, then use the coupling to hold it in place, probably no way to make any kind of fix hold from the inside. I realize you don't want to do this in June but it may be your best opportunity, is this in exposed pipe or in the dam? if exposed it shouldn't take too long to drain it down and fix it. I'm assuming its not a huge gouge but rather a small crack. Good Luck! let us know what worked.
Last edited by gehajake; 03/30/22 06:47 AM.
