Return Pump Noise

Discussion in 'Equipment' started by Jeff Rehling, Dec 29, 2018.

  1. Jeff Rehling

    Jeff Rehling Supporting Member

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    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?
     
  2. Flagg37

    Flagg37 Supporting Member

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    It might be time to clean it.
     
  3. Jeff Rehling

    Jeff Rehling Supporting Member

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    I cleaned it really well a month ago.
     
  4. Coral reefer

    Coral reefer Past President

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    I thought you were running the mag drive?
     
  5. Jeff Rehling

    Jeff Rehling Supporting Member

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  6. Coral reefer

    Coral reefer Past President

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

    Jeff Rehling Supporting Member

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

    Coral reefer Past President

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

    Jeff Rehling Supporting Member

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

    Coral reefer Past President

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    I would try a section of flexible
     
  11. Jeff Rehling

    Jeff Rehling Supporting Member

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    i went to the irrigation store and they didn't have any. what kind of flexible? braided?
     
  12. Flagg37

    Flagg37 Supporting Member

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    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.
     
  13. Jeff Rehling

    Jeff Rehling Supporting Member

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    silicone from the pump to the PVC?
     
  14. iCon

    iCon Supporting Member

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    +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.
     
  15. Coral reefer

    Coral reefer Past President

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    Basically any will work. Can find at lowes easy
     
  16. xcaret

    xcaret Supporting Member

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    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.
     
  17. Ibn

    Ibn Supporting Member

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    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.
     
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  18. Flagg37

    Flagg37 Supporting Member

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

    jccaclimber Supporting Member

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    Hard plumbed or soft hose?
     
  20. Vincerama2

    Vincerama2 Supporting Member

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    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
     

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