This simple cover drain siphons the water off the top of your above-ground pool cover without electricity. Place the cover drain in the middle of your pool's winter cover, run the 13-foot hose off the edge of the pool and begin pumping the blue siphon at the hose’s end until water starts to flow. This cover drain has no movable parts that could break, doesn’t need electricity to function, and won’t clog with debris or leaves. You don’t have to worry about forgetting to turn it off, an…