Speedwave DC pumps?

[nrosdal]

i have been running a dc5000 for the better part of a year now and it is quiet as can be. Ther must be an issue with the pump if you are getting a sound at low speed.

when i have mine at full blast i can hear a slight humm but nothing that would travel more then a few feet and then not be audible. Mine is also externally mounted... so sound should be muffled even more if you have it in water. Do you have the base on it so that it is not vibrating against the sump bottom without the rubber feet?

[Magma]

Yes I have it mounted on the bottom of the sump using the base with the rubber feet and if you turn it up past level 2, the HUM travels from the front room of my house all the way to the back of the house and is VERY noticeable. Its so bad I actually had to close my bedroom door just to sleep last night and it was only Level 3.

[The Grizz]

Originally Posted by Magma

Yes I have it mounted on the bottom of the sump using the base with the rubber feet and if you turn it up past level 2, the HUM travels from the front room of my house all the way to the back of the house and is VERY noticeable. Its so bad I actually had to close my bedroom door just to sleep last night and it was only Level 3.

Try a sound dampening pad under the pump. I bought a couple from BRS and they do work but you need to put it in a ziplock if it's going into the sump.