Hello All, I just bought a foreclosure home with a small 3,500 gallon fiberglass pool that was harshly neglected from not being used. I cleaned it up and my dad found a cheap temporary pump and filter that runs water through the pool. The problem is that the pool leaks pretty quick! When I fill the pool up and the system has pressure in the pipes but it isn't running, the pool will loose water to below the skimmer, and when the pool is running it will go past the skimmer really really quick (About 3 hours). The thing that confuses me is when I fill the pool up but I open the pump to expose the basket and the system is unpressurised, I loose no water? My dad's friend resurfaces pools and he told me he would have to replace the skimmer for about $900? I don't mind paying the money I just wanted some info if anybody thinks it's something besides the skimmer? Thanks!