Biodegradable surface layer film for pools or spas to prevent evaporation and heat loss

1. A solution for forming a film or monomolecular layer of biodegradable film over a body of water including the surface of a swimming pool, hot tub, spa or other water pond to prevent evaporation, retain heat, and maintain the chemical balance of the swimming pool, hot tub, spa or water pond, the solution comprising:

water, deionized water, or filtered water in the weight percent range of from 92.0% to 99.0%; propylene glycol is present in a maximum of 2.0%; methyl paraben is present in a maximum of 0.15%; poly-oxy-ethylene (20) sorbitan monolaurate is present in a range of from 0.10% to 4.0%; cetyl alcohol is present in a range of from 1.0% to 8.0%; sorbitan monopalmitate is present in a range of from 0.10% to 4.0%; poly-oxy-ethylene (20 cetyl ether) is present in a range of from 0.10% to 4.0%; an antifoaming agent is present in a range of from 0.10% to 4.0%; and propyl paraben is present in a maximum of from 0.05%.

2. A solution in accordance with claim 1 for forming a monomolecular layer of biodegradable film over the surface of a swimming pool, hot tub, spa or other water pond to prevent evaporation, retain heat, and maintain the chemical balance of the swimming pool, hot tub, spa or water pond, the solution comprising the following constituents and their percentages:

deionized water 93.1%; propylene glycol 2.0%; methyl paraben 0.15%, poly-oxy-ethylene (20) sorbitan monolaurate 0.2%; cetyl alcohol 4.0%; sorbitan monopalmitate 0.20%; poly-oxy-ethylene (20 cetyl ether) 58 0.20%; silicone antifoaming agent 0.10%; and propyl paraben 0.05%.