Rubber pond liner leak repair:
the rubber liner in my pond has a leak towards the top of the pond. I have searched every inch to find a hole, tear, rip, etc and can't find it. The water level stays just above the lower shelves. It's too old and I don't want to take it all out. It will fall apart. Is there a spray sealant that I can use to completely cover the whole sides? I can't afford a new liner and it would be too much for me alone to take it apart. Any ideas? I have patches, but I can't find the leaks. HELP! There's no fish or plants in it.
That's the water level it stays at. Any water added to fill goes down to there.