The key is you need a back-up sump pump. I'm right with you, it's not if but when, so I put in a gravity fed back-up pump to work when they cut off the electricity, they always do. I'm glad I haveen't found out how well it works but it gives piece of mind. I'll upload my drawings and a video of some jackwagon trying to drive through 4 feet of water and me and my laughing at him as he stalled out in front of my house. Right then, I think its in the video, we closed the door, yeah they arent coming in here. Theres a whole channel based on that...Investigate Discovery