Attach your water hose, turn on faucet, and suction is created. Emptied my hot tub in 15 minutes.

A sea eagle 370 fits in a purse or a small backpack. Makes deploying our paddle boards so much easier. Used for inflating 2 twin air mattress for camping.

The only way it does work is when you plug it into electrical source. Only worked with batteries. Too weak for anything bigger than a kid's water toy.