Our sump pump goes from long periods of inactivity to many days of continuous, heavy use. There have been a few times, say 5 over the 15 years we've been here, when the pump has been overwhelmed. Last weeks massive rainfall/melt-off here in NJ was one of our worst. We had a foot of water in the basement with 2 pumps in the hole working together. Our current pump is almost as old as the house and I'm inclined to think I should retire the old vet before it fails. But what to buy? I have no experience in this and was hoping for a recommendation regarding a sump pump that can leap into activity and push massive amounts of water for days then take the next month off.