I have my own pool, I use the Trouble Free Pool method. It is so low maintenance, it is unbelievably. However, I have family in Beaumont, Texas and Gilbert, Arizona whose pools go green with every rain (both plaster, inground, TX is chlorine AZ is SWG). I blame it on improperly balanced chemistry. But only because I TFP and get rain frequently and it has NEVER gone green. What is the real story? Will TFP stop this pattern?