Suction Side automatic pool cleaners use the suction power created by your filtration system to propel the cleaner around your swimming pool, and pick up debris from the pool floor. Suction side automatic pool cleaners deposit the dirt and debris removed from the swimming pool into your filtration system. Examples of popular suction side automatic pool cleaners for In-Ground swimming pools are the Hayward Pool Vac, the Kreepy Krauly and the Baracuda G3 or Baracuda G4 model. Suction side pool cleaners are very easy to connect and use, and require little or no adjustments or additional parts to adapt to your swimming pool. Suction side pool cleaners are connected with a 1 ½ inch hose, directly to the skimmer at the top of your pool wall. Follow this link for the best prices on name brand automatic pool cleaners.