I'm sorry if this question has been beaten to death but im in a dilemma. I have a 20x40 inground chlorine pool that I inherited with my house 2 years ago. Last year was my year with it. Problem is that when i closed it I took apart my old PERFLEx DE filter and kinda broke it. Now im in the market for a new filter. I found the DE to be AWESOME to keep the water clean but the mess at closing was horrible. I'm thinking about getting a sand filter and am wondering if i should get another perflex or go with sand as I have absoloutly NO idea what sand is. Any info either yeah or neigh would be appreciated. The pool is approx. 27000 gallons and was looking at a hayward 24 any suggestions on anything better? Or should i just go back to DE ??? I know i definately don't want cartridge..... Cheers