Pump noise, in wall

[barjam]

What works best to silence the pumps behind an in wall tank? I can hear my skimmer/return pumps through the wall... sort of a low rumble. Should I go with more insulation or should I put in some 3/4 inch wood between the pumps and the wall? I am leaning towards the 3/4 inch MDF or ply (painted).

Thanks

 

[RicGio]

Low frequency noise is hard to stop. Are your pumps all on foam "mousepad" material? That helped my noise issues a lot. What kind of insulation are you talking about. Fiberglas batt or foam sheet?

 

[2farNorth]

Are your pumps plumbed with hard PVC? and if so are they touching the wall? That was my problem, I have alot of my plumbing mounted to the wall... and I get some vibration because of it....

 

[barjam]

Low frequency noise is hard to stop. Are your pumps all on foam "mousepad" material? That helped my noise issues a lot. What kind of insulation are you talking about. Fiberglas batt or foam sheet?

Yes, except the skimmer pump (in sump) I guess there isn't much I can do about that one. As far as insulation, either if one would actually help.

 

[2farNorth]

I put some foam,, actually the stuff that came with my Mag12 that they want you to use to insulate the pump, between the pipe and the wall, helped alot... I haven't really had much time to tinker with it more though....

 

[RicGio]

I think fiberglas batt would work the best. They sell sound attenuating batt. I don't know if it's heavier than regular fiberglas though.