The ground pin of the swamp cooler water pump A/C plug pulled out when I
unplugged it to lubricate it for the summer so I have to buy a replacement
plug. Being cheap, I deeply regret this expense.

My reason for posting: Why would this pump need a ground? It's plastic
covered so no personal shock danger. Probably because it operates in such a
wet environment. But still, what is it protecting? I'm stupid, obviously.

TIA


--
"Where there's smoke there's toast!" Anon