Hey guys! Awesome site, thanks for sharing your knowledge with the rest of us. We have drained our ag pool for a couple of reasons. Primarily we have a big wrinkle that holds gunk and I'm hoping to stretch it out. While it's empty we are going to clean the liner. I have read on here not to use bleach, but was wondering about what we should use. I am also wondering about the filter we have. I have to change the stupid cartridge every year at $105 a pop. We've tried all sorts of ways of cleaning them, but they always seem to deteriorate and tear anyways. I'm looking at getting a D.E. filter, but I'm curious if they're worth the $400-$500 cost up front when a sand filter might do fine. We have a 2 speed pump and run it on low 24/7. Could that be a problem on the filter? And finally, is the filter flow rate right for my size pool?