Nice tank Ron. I think some ph monitors have issues with floating grounds so there could be something to your power issue. Did you get a UPS already? I am not sure this will work for you but I have been looking at getting a generator for years but I couldnt justify the costs. This is going to be my backup plan the next time we have a power outage as I think I could only afford a UPS that lasted for 30min or so.
http://www.amazon.com/exec/obidos/ASIN/B00...;tag=slickdeals