It's that time of year for frequent power outages. Here's an easy and inexpensive way to deal with short term outages: keep an automotive power converter handy. They're much cheaper than a generator and work great in a pinch. Just plug it into your power outlet in your car and run an extension cord to your return pump. I'm not sure how power you can draw from those, but all you'll really need is circulation so it'll be plenty for that. You'll have to keep your car running until the power comes back on, but that's better than a tank crash