I am going to be installing a back-up sump pump. I grew uneasy watching the level of water in the sump pit rise during our first major storm in October (first time homeowner). I was waiting for the power to go out that night and kill my standard pump, but luckily it never did.

Since that night, I have invested in a 6k watt generator and a utility pump, just in case. I have a three-pronged strategy, the third leg being a back-up sump pump to provide both extra capacity and power-out duties in the event I am not there and can't start up the generator.

I have come up with 2 possible backup sump pump options - the standard 12 volt battery powered system, or the water powered venturi sump pump. The battery powered back up has higher initial cost and long-range battery replacement costs, while the water powered only costs me money once it turns on (it uses city water to "power" it).

My thoughts are to go with the conventional 12 volt battery system due to higher capacity, but thought I would see if anyone has experience with either system and could offer insight.

If it matters, I am considering the Basement WatchDog BWD12-120C, as it offers AC/DC operation and has advanced monitoring software.