Wastewater pumping efficiency and total cost of ownership
April 30, 2008

While it's tempting to apply the same tests for pump efficiency to wastewater pumps that apply to clean-water pumps, the nature of wastewater makes such a comparison mostly invalid. Wastewater, by nature, puts heavy wear and tear on pumps even in normal operation, and the ability to quickly repair wastewater pumps and return them to operation makes a significant difference to overall performance. Thus, while submersible pumps often appear to have higher pumping efficiencies than self-priming pumps, self-primers often produce a much better total efficiency since they are easier to return to service whenever unclogging or repair are required.

April 2008
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last revised April 2008