How can I reduce the vibration noise in new corrugated tubing connected to my sump pump?

Question

My sump pump recently went bad and while replacing it, I also decided to replace the plastic corrugated tubing that was connected to it.

When I turned on the new pump, the amount of noise it was making sounded like there was an elephant in the basement. Best I could tell, that noise came from the corrugated tubing getting into some resonating vibration. After wiggling things here and there, I removed the new tubing and put the old one back in and now the pump is as quiet as a mouse.

As far as I know, this is a standard corrugated tubing for use with sump pumps that I bought from the local hardware store. But it appears to be made of a slightly harder plastic than the old tubing and I think that is partially why vibration noise is so much higher.

Is there anything that can be done to eliminate the noise besides having to use really old tubing which I would like to replace at some point?

Answer 1

You might try insulating a section of the pipe with foam insulation.Then try to mount that to something solid like a section of 2x4.

Answer 2

You could replace the corrugated tubing with smooth black plastic pipe in the same size as your corrugated pipe. It bends slightly, but you will also probably need a 90 degree elbow to make the turn from "up" to "out". Although it fits on the connectors pretty snugly, be sure to get hose clamps for all of the connections; it would be a bad day if one of the connections eventually came apart.