This is how I have my system set up for both safety and redundancy:
- 3 separate GFCIs over 3 separate circuits. I don't have all my eggs in one basket.
- The circulation pumps are hooked up to a CanTire UPC. If there is a GFCI trip on the circuit with the pumps on them (or a power outage) the UPC will kick in.
- One of these days I'm getting a Lee's battery bubbler as a final bit of redundancy should the UPC run out of juice as well.
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