I'm trying to help a new neighbor install a pressure gauge on his irrigation pump. With my system, it's simple. My pump is wired directly to a junction box. I kill the circuit breaker to the pump, then run a zone to depressurize the pump.
With his system, I'm confused. It includes a relay switch between the junction box and the pump. In the junction box, there's a metal plate installed that prevents us from killing the circuit breaker. The previous owner had the system professionally...
Irrigation Pump with Relay Switch
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