Water Pump

[Richardtr3a]

Hi,

I need some advice on the water pump fitted to our house. The water pressure was very low when we bought the house about 18 months ago. The new shower which we put in, was not working properly. So we installed a Stuart Turner pump. The pressure is now very good and the pump has worked very well. But there is noise.  Does any one have any suggestions on noise reduction ? We have to allow the pump to have some air to prevent overheating

If anyone has any recommendations please let me know. I have also sent an email to the pump company in case they have an answer.

I have upgraded the TR3A cooling and it now is very reliable so I am now hoping the Forum will supply an answer.

Thanks 

Richard & B

[Peter V W]

Richard, My pump sits on a water pump isolation mat.

does reduce noise.

Peter

[Trev Good]

Stuart Turner pumps are noisy, the more expensive ones less so! Expect to pay between £400 to £650 for the better/quieter ones. I fitted one in the barn extension on our farmhouse for the shower room and was so pleased with it that I also put one in the main bathroom. Both are on isolation mats under the bath.

Some of the cheaper makes don't last more than a few years.

[Richardtr3a]

I have checked my pump this afternoon.. It is on an isolation mat which is in a cupboard and it is on a raised floor about 4 inches above the bedroom floor. It is surrounded with 2 inches of insulation but not much on top. It is supposed to run hot.

There have been strong winds and some rain but I managed to get the grass cut this morning.

Thanks for the advice.

Richard & B

 

[Z320]

Hi Richard,

please tell us more…..

Is there noise of the pump via the air?

The pump is slack on an insulation mat or fixed through it with bolts.

Noise via the pipes? How is it connected to the pipes?

Is it cavitation in the pump because it sucks on a too small pipe?

What us the pressure without pump and without flow? 4 bar would be good.

photos would be great.

Ciao, Marco

[Richardtr3a]

Thanks for your advice Marco. I will work on it this morning and report here later on   😄

[Richardtr3a]

Thanks for the questions I have looked at the detail and this is what we have

1. Noise comes by air only
2. The pump is not fixed to the insulation  mat and it is free to move at all times
3. The noise is not by the pipes and there are  four flexible connectors about 9 inches long
4. The main pipes are  28mm copper and are connected to the hot water cylinder and the hot water supply
5. I can not measure the pressure until I have access to the correct tools

The pump works very well but the only problem is the noise. I am waiting for a reply from the pump makers Stuart Turner Ltd

Thanks

Richard & B

[mkmick]

Speaking as a retired plumber have experienced this problem countless times. Stuart Turner will ask has it been installed as per manufacturer's instructions. 

Pay particular attention to feed connection on the hot water cylinder use a Surrey or Sussex flange if possible they will help avoid any cavitation issues. 

[Richardtr3a]

Thanks for the replies. I am waiting for Stuart Turner to reply and will ask for more advice.

[Richardtr3a]

Stuart Turner has replied with a link to a number of suggestions. I think that we have followed their instructions.  

Mick,

Which is the feed connection to the hot water cylinder ??

Thanks Richard & B

[Trev Good]

On 9/15/2025 at 4:30 PM, Richardtr3a said:

I have checked my pump this afternoon.. It is on an isolation mat which is in a cupboard and it is on a raised floor about 4 inches above the bedroom floor. It is surrounded with 2 inches of insulation but not much on top. It is supposed to run hot.

There have been strong winds and some rain but I managed to get the grass cut this morning.

Thanks for the advice.

Richard & B

 

Hi Richard, is the raised floor solid or built up with a void underneath? If the latter, the void may be amplifying the noise.