Water Pump is large with metal casing. It came pre wired from factory. So are you telling me that since the pump is already grounded that the ground wire from controller box's power cord doesn't need to be grounded to anything?…"
I've been dealing with my sick fish most of the day. Would you or Steve put your stamp of approval on the following element, keeping in mind that I need stainless steel or incoloy for fish.
As I read it, it appears to be…"
"Hi Chris - glad you get sorted.
Just note - 2 of the 3 power supplies you shown is DC 5V - should be fine as the relay works from 3 to 32Vdc. If you look at Steve's drawing - follow the positive (+) terminal from the…"