The Blue Wave Drain for Winter Pool Cover is a non-electric solution for clearing excess water from above-ground covers. Its manual squeeze-operated siphon pump starts instantly and stops automatically when the cover is drained. Constructed of durable plastic, the system includes an 8 in. x 8 in. porous drain, a siphon pump, and a 13 ft. hose-everything you need to keep your winter cover clean and damage-free. To use, pre-fill the hose to prime the siphon, position the base on a debris-free section of the cover, and squeeze the pump until the flow begins; the unit will shut off when empty. Compact (4 lb.) and easy to store, it delivers effortless winter cover maintenance.