Solarpill. I am wondering if it really works 
Info:
Prevents pool water heat loss and evaporation using an invisible layer of non-toxic, biodegradable film
Works like a conventional solar blanket, but without the hassle
Much more for much less! - One pill treats up to 30,000 gallons
Patented delivery system for complete coverage
Will NOT be affected by automatic pool cleaners

Info:
Prevents pool water heat loss and evaporation using an invisible layer of non-toxic, biodegradable film
Works like a conventional solar blanket, but without the hassle
Much more for much less! - One pill treats up to 30,000 gallons
Patented delivery system for complete coverage
Will NOT be affected by automatic pool cleaners