Surfing the net for ideas-
-water, manure,etc go downhill from the house gutter and kiddie pool hugleculture in it to the greenhouse(in process.. .). Figuring the parts and pieces (lol) .
I had a similar problem with a 3/4 horse jet pump that the wire was just a little long from the NEC spec. Breakers kept popping. Found out eventually that the Chinese manufactured contactors are not quite up to snuff compared to the one from Siemens ite or Square D. Fixed the problem. Eventually went to half horse turbine pump.
Mike