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When discussing pump maintenance, we often forget about the electrical side of the equation. Mechanics think about the mechanical side, and we’ll let the electricians worry about the power side. However, it is critical that we take a more holistic view of the entire pump system to make sure we’re not exceeding manufacturer specs when we are using our equipment.

There are several measures we need to keep in mind when we look at equipment lifetime calculations. For example:
– # start/stop cycles in a given period
– Run time after starting
– Overall duty cycle

I read this interesting article about why these items are important.  The author also had a calculator spreadsheet that helps you figure out appropriate run times for pumping out a sump or tank.  That calculator is here.