Advice on shower pump replacement

[ianbeag]

I recently had a replacement double shower pump fitted to replace one which had worked flawlessly for about 12 years. The plumber recommended a make which I had not heard of - Aura twin impeller 2.0bar unit. When either shower is operated the noise level from this unit is the equivalent of a passenger jet at take-off and cannot be used when any of the surrounding bedrooms are occupied. I am now ready to remove and replace the unit and my question to your knowledgeable experts is:- What alternative unit can you recommend to operate two showers but does not disrupt the peace of an entire household? Any suggestion will be much appreciated.

 

[Cello]

Before replacement, suggest you ask the pump manufacturer if it is normal for such noise levels to be produced. If not, you might have an installation problem??

 

[ianbeag]

Cello Thanks for responding. I though that it would be a simple matter to install a replacement unit for one which was previously trouble free and relatively quiet. I had suggested a Grundfos pump but the plumber fitted this one instead. It would be helpful to have some suggestions from experienced professionals for a reliable pump that is reasonably quiet in operation.

 

[Neil K]

Stuart Turner can't go wrong. Might be installation problem, air, no flange fitted on cylinder etc. Check all valves in and out of pump are open

 

[Ray Stafford]

The make of the pump is probably less important than the type of pump.

If you want to keep the noise down, you need a centrifugal pump, NOT a regenerative pump.

The latter are cheaper to make, and are often more forgiving of sub-optimal installs, but the stripping block on a regenerative pump is what gives it that whining, jet turbine noise.

Try a centrifugal pump, for example the Salamander RSP range (but not the CT range).

 

[ianbeag]

Thank you Ray & Neil for taking the trouble to respond. I was not aware of the two concepts of centrifugal and regenerative operations and that will help to build up useful bank of information before making the choice of replacement pump.