AquaPill Solarpill is a liquid solar blanket in a pill making it easy to use and maintenance free. Just drop the pill into your swimming pool skimmer. Features IncludePrevents pool water evaporation and heat loss with an invisible layer of non-toxic biodegradable filmWorks like a conventional solar blanket without the hassleEasy to use, simply drop into pool skimmerPatented delivery system for complete coverageIs not affected by automatic pool cleanersFor pools with up to 30,000 gallons of waterKeeps a larger pool warm for up to one monthSave money on heating