So are GFCI receptacles or circuit breakers for 220 easy enough to source? Do they even exist? I'm fairly certain you can't install a conventional GFCI device into a 3 wire circuit, black/red/white/green (green earth wire is not counted). With two hot wires, black and red feeding current through the single white neutral, there's going to be an imbalance, tripping the GFCI. So the next question would be, how comfortable are you hooking up devices near/in the water without GFCI protection?
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