So I've done some repairs on my pool equipment wiring and know enough to be dangerous. I am not the original owner of the house/pool. It has never had a GFCI on the pump. How critical is it that this be added as far as safety is concerned? I do get a bit nervous when I have the fiddle with the controls in the rain, however I don't relish the though of doing this upgrade. Everything is hard-wired to the breaker panel, there is no outlet there to simply swap out. There is a basic pool timer and freeze protect system in the circuit. The pump is wired for 240 V.