My pool is a little over a year old. While swimming yesterday, we noticed something on the side wall in the shallow end. About 1 1/2 feet below the surface, you can fell the outline of a small rock under the liner. It sticks out, and you can tell it's a rather sharp feeling pebble. I just know that if someone pushes on it really hard, the rock would punch a hole in the liner. Or maybe it's possible that it could just wear a hole there all on it's own.
What should I do? Go ahead and put a patch over the area now, before there is a hole? Or should I have a repair person lower the water level, loosen the liner from the track, and try to reach in there and get the rock out? I guess it's possible it's something permanent in there (it's a concrete shell with a liner dropped in). So I don't know if one could get it out even if we did try to go behind the liner. Also, I'm afraid that will make huge wrinkles in the liner.
What should I do?