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Pump Sizing
Determining the required output of chemical is the first step when sizing a pump to install into your system. Below is a simple chart showing standard system flowrates and the required pump output for pumping sodium hypochlorite:
Heading 1
The required pump output is calculated using the formula below:
Required Pump Output (GPH) = ((Max Flow Rate (GPM) X Desired PPM) / (% Strength of Hypo)) X 0.006
The required pump output values in Table 1 were calculated using a desired PPM of 2 and a 12.5% strength of sodium hypochlorite.
The PDF file of this chart and formula is available for your convenience:
Once the required output of the pump has been determined, the actual pump can be selected.
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