Peter - I thought about one of those water powered backup sump pumps. My brother has one in his house, but on very hard rains he says it doesn't keep up (his has to pump up 8 ft high). I bought one of those battery backup pumps that is actually supposed to be the primary pump also. But I will use it only as a backup. This particular model requires two 12V batteries for power so I hope if the power goes out it would run for quite a while. Maybe I should have a water powered pump as backup for the battery pump? Or would that be overkill?
