Retired USAF SMS, Fighter Radar Technician / Instructor / Superintendent.
Was wood-working, then golf, now pools..
17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4 (now 8), IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin S200 Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.