109. PUMP CURVE124. SKIMMER
107. PUMP110. PUMP STRAINER BASKET125. SKIMMER BASKET
108.PUMP CAPACITY117.SAND FILTER126.SKIMMER WEIR
A mechanical device, usually powered by an electric motor, which causes hydraulic flow and pressure for the purpose of filtration, heating and circulation of pool and spa water. Typically, a centrifugal pump is used for pools, spas and hot tubs.
The volume of liquid a pump is capable of moving during a specified period of time. This is usually gallons per minute (gpm).
Also called a pump performance curve – A graph that represents a pump’s water flow capacity at any given resistance.
Pump Strainer Basket – A device placed on the suction side of the pump, which contains a removable strainer basket designed to trap debris in the water flow without causing much flow restriction. Sometimes called a “hair-and-lint trap.”
A filter using sand or sand and gravel as the filter medium.
A device installed through the wall of a pool or spa that is connected to the suction line of the pump that draws water and floating debris in the water flow from the surface without causing much flow restriction.
A removable, slotted basket or strainer placed in the skimmer on the suction side of the pump, which is designed to trap floating debris in the water flow from the surface without causing much flow restriction.
Part of a skimmer that adjusts automatically to small changes in water level to assure a continuous flow of water to the skimmer. The small floating “door” on the side of the skimmer that faces the water over which water flows on its way to the skimmer. The weir also prevents debris from floating back into the pool when the pump shuts off.