Automatic Suction-Side Pool Cleaners
These rely on suction to make them move and vacuum fine particles of dirt and small leaves and twigs off of the pool floor. It is like a moving main drain. When the cleaner is underwater, sucking debris into it, it is also sucking water through your filtration system, causing you to turn more water over in a shorter amount of time. Since it sucks debris right into your filter, it can remove much finer particles than a pool cleaner with a bag. And since they can be installed through the skimmer or on a dedicated line in less than 15 minutes and do not require additional tools, a suction-side pool cleaner is usually a lot cheaper to install. If you are in an area where large debris rarely gets into your pool, then a suction-side cleaner may be your best bet.
