Empty tarpaulin that removes rainwater from the cover of your above ground pool. The complete kit consists of a mouthpiece, a 4.5 m hose and a siphon. No electric pump required. Installation takes less than 2 minutes. Connect the hose to the mouthpiece and make sure the hose cannot twist. Place the plunger in the center of your pool cover and attach the siphon to the other side of the pipe. Make sure that the siphon tube is lower than the piston (minimum 20 cm). Squeeze the siphon until your hose is filled with water. Then let the water run and empty your tarpaulin.