1. Remove the filters and clean the entire unit.
  2. Remove any obstructions from the pump body, such as leaves, branches, or other objects that may be blocking the flow of air and water.
  3. Open the top cover of the pump and empty all of the water out of it.
  4. Place a clean cloth on top of the pump and turn it on to full power. Be sure to keep your hand close to the cloth so that you can move it back and forth in a circular motion as you clean it.