Anyone tried the Ecosavr from Flexible Solutions yet? Apparently it forms a chemical barrier on the pool surface and reduces evaporation and heat loss by 40%. It comes in a plastic fish you leave in the pool and change out every 4 weeks. It's only 10 bucks so not a big financial risk but I, being a true BBB practitioner, am Leary...
Wayne
Update: Just checked the site and according to the MSDS, it's just Isopropyl Alcohol. Hmm...