Will a solar blanket reduce evaporation on a pool?

Pool covers retain heat. Most heat lost from a pool is from evaporation from the surface - over 95%. The cover will keep over 90% of the heat in the pool. A pool cover will help to attract a small amount of heat, it is no substitute for a heater. If you use a heater, using a cover can save you over 50% of the heating cost. If you use solar, which works in almost all geographic areas, then the cover will retain the heat overnight and allow the solar to bring the pool up to the 80's in 1 to 3 days. Liquid covers (Tropical Fish) work about 50% as well as plastic covers.

ANSW:: I would have to say that a bubble solar cover will bring the temps of a pool up from about 10 to 15 degrees during warm sunny days. However, at night when the air temp dips you are going to loose a certain amount of degrees even with the cover on. The cover will retain some or most of the heat gained during the day. Pool covers in So. Cal. are not expected to heat the pool during their "winter season" and in most areas the cover is used at the fringe of the seasons to gain solar heat prior to having to turn on the gas heater. You exude as much heat out of the cover as possible during pre-season and post-season. k