To make this plug 'N' play or easy , go back to Canadian Tire and buy the Noma 400 battery back up system, it has the relay already build in, just plug it in the wall, plug the power head in to the Noma and your done! The power head runs all the time, power outage or not. The Noma costs $199.00, Canadian Tire has them on sale often for $140.00 or so? Just watch the flyer
It can also be done with two relays with what you have but that's another story and the Noma is SO much easier
Just my 2 cents...
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HAPPY REEF KEEPING !!______________________
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