Return Pump Noise

[Jeff Rehling]

I have a Synchra Silent, which right now is anything but. it's not touching the sides of the sump, and it's mounted on its little suction cups, but there's a lot of vibration. What are some ways to dampen the operating noise?

 

[Flagg37]

It might be time to clean it.

 

[Jeff Rehling]

I cleaned it really well a month ago.

 

[Coral reefer]

I thought you were running the mag drive?

 

[Jeff Rehling]

no

 

[Coral reefer]

Why'd you switch? Do you still have it? Has this pump always been loud or did it get louder?

 

[Jeff Rehling]

I didn't switch...always had the Synchra silent. it's just a bit noisier than it was in the EShopps

 

[Coral reefer]

Did you change the plumbing connection to straight pvc? It will allow more vibration than flexible tube.

 

[Jeff Rehling]

it was always PVC but now it's just a longer run.

 

[Coral reefer]

I would try a section of flexible

 

[Jeff Rehling]

i went to the irrigation store and they didn't have any. what kind of flexible? braided?

 

[Flagg37]

I did a short (<1’) section of silicone tubing. It’s really easy to kink though so try to keep it as straight as possible.

 

[Jeff Rehling]

silicone from the pump to the PVC?

 

[iCon]

+1. Silicone - Is this a new pump? Impeller all good?

I place a piece of rubber matting under return pumps. Helps dampen the vibrations just a bit - Same stuff as you’d put on a stand under a tank.

 

[Coral reefer]

i went to the irrigation store and they didn't have any. what kind of flexible? braided?

Basically any will work. Can find at lowes easy

 

[xcaret]

Braided nylon is stiff, just a section of vinyl hose will do it; you have/had a section of hose on it?
Might be just the pump not sitting properly in the sump.

 

[Ibn]

Put the pump over a silicone mat. Both my return pump as well as my skimmer are on silicone mats to dampen the noise/vibration.

 

[Flagg37]

Put the pump over a silicone mat. Both my return pump as well as my skimmer are on silicone mats to dampen the noise/vibration.

I should have put my skimmer pump on a mat. I didn’t even think about it.

 

[jccaclimber]

Hard plumbed or soft hose?

 

[Vincerama2]

Is it a submerged pump? Or external? If it's internal you can put down a layer of sand and set the pump on top. It (typically) will not suck the sand up, and the sand will help isolate the pump from the sides of the sump.

If it's external and it doesn't heat up a lot ... make a box to cover it?

V