The Kreepy Krauly E-Z Vac Pool Cleaner vacuums dirt and debris from your pool just like a hand vacuum, however, the difference is that the E-Z Vac works automatically using hydraulic technology. It works when your pump works, and uses true random-pattern coverage to clean your pool. The EZ Vac has only one moving part for long dependable service, life and ease of maintenance. The Kreepy Krauly EZ Vac doesn't get hung up on irregularities in the pool bottom. The automatic skimming valve included free with the EZ Vac allows simultaneous skimming and vacuuming. With the EZ Vac, there are no bags to empty, no diaphragms to replace and no gears or wheels to jam.