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Interested in off grid solar to power RV park wastewater treatment system. Just eight 1HP pumps and four 120 watts aerators.

RickP, you are right. There is a piece of info missing (minor??). The pumps are main and spare in four sumps. Normal operating time, one pump for less than 20 minutes total per day for each of the four sump pump installations. But the system has to be able to run six pumps simultaneously as...