Just added a battery back up system.
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I made a mental note of this sign when I was attempting to get the Bell Siphon to work!
I HAVE NOT FAILED. I'VE JUST FOUND 10,000 WAYS THAT WON'T WORK. Thomas A Edison
Battery Back up; two 6 volt golf cart batteries wired in series and a 12 volt water pump.
Drop in one divider board with vent holes cut into it, a battery charger with a tickle charge setting.
Water proof top, just snaps in place. When power goes off, just close two values and open one. Then just connect the water pump to the battery.