So we're getting closer to building our pool, we haven't decided exactly which kind of filter etc but I thought I'd solicit recommendations. We're planning an 18x36 rectangle with a 6 or 7 ft deep end, I'm guessing around 24k gallons. Any ideas on recommended filter sizes for that in sand, DE and cartridge? I'm thinking about a 1.5hp 2 speed pump with 2 inch plumbing if that has any effect on the recommendation. Also if any of that sounds wrong, please let me know before I start clarifying bids.