Isolating Central Heating pump

[Ben565]

Hi,

I posted a thread a while ago as I was having some problems with a noisy boiler. Well I tracked down one of the noises to the central heating pump, I don't think it's faulty, but it hums and transmits that along the pipework, which then transmits it around the house. It's definitly the pump as the noise is present when the boiler is off (and goes away when the pump switches off)

I tried putting some foam under the pipework near the pump but it didn't really work.

I wondered if it was possible to isolate the pump from the pipework in any way with flexible couplings? and mount the pump to a solid surface with anti vibration mounts?

I had a similar problem with the extractor unit in the loft transmitting vibration down the ductwork. I fitted the motor unit on anti vibration mounts and used short pieces of flexible ducting to connect it to the rigid ducting. It was very effective in solving the problem. Just wondered if a similar solution was possible for a central heating pump.

 

[hazetimesfive]

what pump is it

 

[Ben565]

Grundfos, p/n:59506180 pc:0750

It's blue and also has British Gas printed on it.

 

[hazetimesfive]

difficult to say without hearing it but if the pump is noisy it should be replaced

 

[Ben565]

It's a new pump.

 

[Classic40]

PC:0750 is the mfr date.

07 = 2007
50 = Week 50.

So it's a late 2007 pump, maybe new and unused but not brand new stock.