I am new to the forum. We have a 24' above ground pool. The incredibly wet summer we have had in the south has lead to some sand washing out from under the edge of my liner. Actually a section probably 10' long x 6inches wide x 3inches deep. Can I drain the pool and refill the sand? It is an overlap liner. I use well water and have plenty, so refilling is not an obstacle. I am afraid of ruining the liner by draining, but I see this being a 2-3 day project, so the liner shouldn't really have time to shrink? Any advice?