Noisey Red Sea Pump

[martin]

Hi,

I've bought a Red Sea Berlin HOB Skimmer with a U.S. 110v pump. I have a
transformer to convert UK 240v to 110v but the pump is really noisy, I can
use one of my other pumps which is fine but its not as powerful as the Red
Sea one that came with it. If I run the pump not connected to the skimmer
it is silent.

Does anybody have any idea what is causing this ? Any way I can get it to
shut up ?

Any help would be appreciated.

Cheers

Martin

[Marc Levenson]

It sounds like cavitation to me. You can run it silently, but once it
has some head pressure it gets noisy. Perhaps the impellar needs to be
replaced, if it is worn down. Or maybe it is amplified vibration from
the skimmer body, but some flexible tubing between the pump and the
skimmer will deaden the noise.

Marc


martin wrote:
> Hi,
>
> I've bought a Red Sea Berlin HOB Skimmer with a U.S. 110v pump. I have a
> transformer to convert UK 240v to 110v but the pump is really noisy, I can
> use one of my other pumps which is fine but its not as powerful as the Red
> Sea one that came with it. If I run the pump not connected to the skimmer
> it is silent.
>
> Does anybody have any idea what is causing this ? Any way I can get it to
> shut up ?
>
> Any help would be appreciated.
>
> Cheers
>
> Martin

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[DrC]

Yes, mine is noisy as well...so noisy I have to have it on a timer so
it only runs at night and during the working day when we're out.

I put it down to a pump pumping a mix of air and water which makes
things like my power heads noisy as well. If there was a way to make
it quiet that would be brilliant!