I am in the process of adding a SWG (Pentair Ichlor 30) to my in-ground plaster pool. When wiring the power unit to the power control center, the instruction manual says to wire it to the “pump side” of the relay. With the power off, of course, do I just trace the “line side” power cables from the pump’s circuit breaker up to the relay, and then tap into the power cables on the pump side of that same relay? Thanks for any direction/advice.