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Swimming Pool Pumps, the heart of the swimming pool

by anonymous

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The heart of the swimming pool is the filtration system. The filtration system consists of a pump and filter. A pool pump consists of a motor and a wet end that contains the basket and impeller. Although pool pumps are manufactured to exact standards, eventually the pool pump will need repair. Most pool pumps will fail due to seal failure, causing water from the wet end to get into the motor and eventually cause the motor to fail.

To prevent seal failures, do not run the pump dry for extended periods of time. Consider the following: Prevent air from getting into the pump and running dry. Make sure the pump lid has no cracks. The pump lid O-ring is clean. No dirt, hair, grass are present on the O-ring. With the pump running, check the trap for air bubbles which could be a sign of an air leak at the front of the pump. Any dripping below the pump could be an indication of seal failure.

Checking the above will help ensure the motor will last many years. However, there will come a time that the motor will need to be replaced. While there are many motor manufacturers, the industry leaders are AO Smith and Century Magnetek, which are now the same company. Companies such as Hayward, Pentair, Sta-Rite have used these motors for years.

When replacing a motor there are a few very important things to consider. The first is how the motor mounts to the wet end. There are three main types: square flange, c-faced, and thru bolt type mounts. The next most important thing to consider is the Horsepower (HP) of the pump. Horsepower alone is not sufficient to determine the correct motor. Often there is more than one motor, with the same frame and horsepower. Service Factor (SF) is used to distinguish these similar motors. The HP x SF must equal or exceed the motor you are replacing. Using the above criteria should get you the correct motor in most cases.

When replacing a motor, there are a few must do’s. Before working on the pump, turn off the Circuit Breaker. Take a few pictures of the wiring before disconnecting anything. But the most important step is replace all seals and gaskets. This is determined by the make and model of the pool pump, not the motor. For example Hayward Pool Pump: Model SPX2610x5.

At we offer a complete line of swimming pool motors, Seals, Gaskets, O-Rings. We have pool pump parts diagrams for most Hayward Pool Pumps and other brands. Please see our large selection of pool motors

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