Doug - Purchased 1/2016, 1995 house with 16x31 ft, ~23000 gallon Gunite pool w 11x7 spa, 3 Pentair VS pumps, a boost pump for polaris 3900 and a Badu® Jet super-sport swim jet pump, 1.5 hp blower, a CL460 Cartridge filter. TF-100 test kit. Aquapure 1400 SWG, iAqualink - Lots to learn. New Aquabright, Jandy LEDs, CMP LED Sheers.