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Adjusting Pool Pump Impeller

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  rev. 2008-11-25        

Existing Conditions

The pool pump currently operates continuously to maintain <a pressure difference across the diatomaceous earth filter> a suitable level of water recirculation and filtration.  <Valves have been throttled back to reduce the flow.  The pump has to work harder than necessary to overcome the pressure drop through the valves.>

Retrofit Conditions

We recommend machining the pool pump impeller to reduce the diameter for the required water flow.  All valves should be opened to minimize unnecessary flow restriction.

Further Benefits




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