An IG plaster Stonescapes Tropics Blue pool/spa combo, about 31'x18' and about 20,000 gallons. All Pentair equipment: IntelliCenter, FNS 60 DE filter, IC40 SWG, IntelliPH, IntelliFlow VSF pump, booster pump, water feature wall and pump, master temp 400,000 BTU, Dolphin M500, TF-100 test kit. My favorite TFP quote, “shock is a verb, not a noun”. Just say no to pucks! Build thread: New Pool Build in Austin (Feedback welcome)