Flow sensing pump shutoff

[schurtj]

Recently I have been having a reoccurring nightmare where I am at work, and a line on my pump system comes apart allowing the pump to dump 22,000 gallons of water next to my house and basement!

Is there some sort of flow sensor that would be able to sense the lack of flow, and turn off my pump?

 

[mas985]

Seems like a better solution would be to fix the pipe. I would not want to rely on anything to shut off the motor in a timely manner.