Thank-you all for the wonderful ideas! After chasing mystery leaks for 2 weeks I gave in and ordered a new inner liner for our 14' X 48" Intex Ultra Frame Pool. Everything is installed and the pool will finish filling tonight but I have a couple of last minute questions about the intake/outflow holes for the pump. Did anyone use adhesive (at the holes) between the new liner and the old? If so what type did you use? And did you cut the hole exactly the same size, larger or smaller? Kinda panicking about cutting a HOLE in a brand new liner even though I know it has to be done. :-? Also if it makes a difference I ordered a larger pump so I am using a 1 1/4 to 1 1/2 adapter kit for the hoses. The last thing I want is water leaking between the liners...
I used adhesive between the new liner and the rubber gasket. I didn't put any between the liners. I just did it to make sure the liner didn't pull away from the gasket. I don't think it does or will so it might not be needed. I cut my hole the same size as the original hole on the intex liner. I let the water get right up to the bottom of the hole and put a board on the inside and cut the liner from the outside through the intex hole. Hopefully we will hear from others and see what they did.