The Surface Skimmer
In a properly designed swimming pool circulating system, on or more surface skimmers connected to the pump intake pull dirt, oil, lotions, floating algae, and leaves into the filtration system. Suction from the main drain outlet at the deepest point in the pool will not pull these materials down, as they collect on the surface of the water.
Most skimmers are built into the swimming pool, though units that hang on the side of the pool are also available for portable or in-ground pools built without skimmers.
How does a Skimmer Works?
Several varieties of built-in skimmers are made. Most are designed with a filter basket to remove large debris. You can also purchase a unit with a built-in filter cartridge, a sensing device that automatically replaces lost water, or an automatic dispenser for chlorination. A vacuum or suction connection may be part of the skimmer, for use when vacuuming the pool.
Surface Skimmer, What they Made Off?
The usual surface skimmer is made of precast concrete or plastic and consists of a tank with a projecting throat on its upper side.. A self-adjusting floating weir performs the skimming action by regulating the amount of water that enters the skimmer. Because it adjusts to allow only a thin sheet of water to spill over, velocity and not volume is the key to good skimming.
The skimmer will be most effective when it is located on the down-wind side of the pool; the wind helps the pump by pushing debris toward the opening. |