I, too, have a 13'x25' Legacy rectangular pool. One end of the pool has done the same thing. I have read that emptying an above ground pool will cause the sides to collapse. Is this true with the Legacy pools? Also, I have been searching for a replacement liner for my pool as I want to be prepared in the event something would happen to the current liner. My pool is about 13 or 14 years old. So far, I have had no luck in this endeavor! Does anyone know if a liner can be obtained?