Check the listing for details. Aquapill Solar Pill Liquid Solar Blanket for 12,000 Gallon Pools. Condition: New. Listed at 16.99 USD. Aquapill Solar Pill Liquid Solar Blanket for 12,000 Gallon PoolsSimply pop out the pre-marked hole on the AquaPill and place in your skimmer!The liquid solar cover rises to the surface of the pool, forming an invisible layer on the surface.Once the AquaPill is empty, simply remove from your skimmer.Will not damage the vinyl or any other pool surfaces and is absolutely harmless to skin contact.Each pill lasts approximately 30 days.Simply pop out the pre-marked hole on the AquaPill and place in your skimmer! The liquid solar cover rises to the surface of the pool, forming an invisible layer on the surface. Will not damage the vinyl or any other pool surfaces and is absolutely harmless to skin contact. Once the AquaPill is empty, simply remove from your skimmer. Each pill lasts approximately 30 days.