You probably already know this...But a much better fix is to use the switch panel to activate a 30 or 40 amp relay. That way your using minimal voltage to pull the relay in. Run at least 12 gauge wire from your battery to the relays input wire (You don't have to but I would install a 30 amp breaker or fuse), then another wire from the relays output wire down to the Water Pump itself. You can just use little 16 gauge from your switch panel over to activate the relay. Use 16 gauge from the relay to ground also.
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Jeff Niceswanger 3740 SS
Last edited by Jeff Niceswanger; 11-01-2021 at 03:59 PM.