Sump won't turn off - rain won't stop

[Mindy Jensen]

It has been raining since Monday. The river is above flood stage, the rain won't stop. I went down to the crawlspace just to double check, and found a lot of water. I see where it is coming in - from poor grading around the house. I can fix that later, but the sump won't stop running. Pretty sure the float switch is jammed or faulty - the sump came with the house, it was a foreclosure so I have zero information. It looks old. It is a Big John, if that helps at all.

So I don't feel comfortable turning it off to try to fix it - what if it didn't go back on? Rain is forecast for the next 2 days, along with 2-8 inches of snow - YAY!

Any suggestions or uplifting stories of when this happened to you and you turned it off and everything worked out and you lived happily ever after?

Thanks!