Non-Electric Above Ground Swimming Pool Winter Cover Siphon PumpOur easy to use siphon pump helps protect your pool cover from water ice and mildew damage throughout the winter. It easily removes excess rainwater from the pool cover by pumping the water off without the need for electricity. Simply place the cover drain on top of your above ground pool cover and squeeze the siphon pump until water begins to flow. Avoid the hassle of trying to empty the heavy rainwater that collects on top of your cover. Non