In-Ground. White Marbelite plaster. 21'-7" x 38' Figure Eightish Custom diving pool with 9' deep end. 24,750 Gallons. Pentair Challenger 2 hp pump, Pentair Clean and Clear Plus CCP420 Cartridge Filter, Paramount PCC-2000 In Floor Cleaning system with Debris Canister. Pool/House was a foreclosure that sat dormant for at least 2 years, and was an actual swamp. Using BBB and POP I made it a sparkling backyard oasis. I have a TF100 kit, and I know how to use it (mostly!). This is my FIRST REAL pool, but thanks to TFP, I know what I'm doing! (mostly!).