Anyone in a "freezing winter" area who doesn't close their swimming pool? (Page 3/3) jmbishop OCT 13, 04:36 PM Yeah, that's such a niche thing it definitely wouldn't be cheap. If I wanted to try to warm a pool a little, I'd use a floating solar cover. The cover wouldn't just absorb heat, it also controls evaporation that is cooling your water. maryjane OCT 13, 05:23 PM quote Originally posted by jmbishop: Yeah, that's such a niche thing it definitely wouldn't be cheap. If I wanted to try to warm a pool a little, I'd use a floating solar cover. The cover wouldn't just absorb heat, it also controls evaporation that is cooling your water. Back in July and Aug, when it was so hot and the wind was blowing, the pool felt great but the wind IMO, was evaporating as much water as the heat and sun was. My water bill was pretty high but most of it came from an underground leak in the yard irrigation system. I left the irrigation master valve on mid July thru mid Aug and the water bill was for 30,000 gal and none of it showed up above ground. Needless to say, I turned that off at the backflow preventer and just let the grass stay brown.