Return pump ( 120w ) hooked to a triplite 750 inverter with a deep marine battery, this will handle aprox. 5 hours. Anything beyond that we have a quiet Honda 2000w. Honda while it was more expensive ( we have had it at 10+ years now ) we use it quite alot for many uses like camping, church carnivals, kids birthday bouncy castles etc.
In the last 10-12 years we have had 2 extended outages ones was for 6 days and the other for 3 days so the generator has already paid for itself in potential livestock losses.
PS: True Story, while I was giving talk as a speaker on the topic of redundcy at a local club event at a community center, my wife called to let me know the power went at my house went out during the event. No worries, UPS was doing its job and no reason to rush home. It was the perfect testimony to give during my talk.
In the last 10-12 years we have had 2 extended outages ones was for 6 days and the other for 3 days so the generator has already paid for itself in potential livestock losses.
PS: True Story, while I was giving talk as a speaker on the topic of redundcy at a local club event at a community center, my wife called to let me know the power went at my house went out during the event. No worries, UPS was doing its job and no reason to rush home. It was the perfect testimony to give during my talk.