"Timothy Tom" wrote in message om...
"david" wrote in message link.net...
We have taken a few power hits during the latest storm and I am afriad it
will blow my
lights... does anyone use and UPS on their tank ?

Yes I have a back-up power supply for the main pump. It works for
about 15 mins before it is exhausted.

15 minutes? I would say your UPS is not needed at all.
You could leave it not working for 15 minutes and it would not harm the tank...