Shower Pump Noise

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I have recently had a shower pump installed in a new thermostatic shower system. The pump is situated on a small shelf within the cupboard that houses the hot water tank within the bathroom. Everything is ok with the operation etc, the only thing that concerns is the level of noise of the pump when in operation. Can anyone suggest any tried and tested technique in order to soften or dampen the noise of the pump when in operation please?

Regards

Asgar
 
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First thing to try is to stand the pump on a 3" thick foam rubber pad. That's how my pump is installed.
 
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You need to insulate the pump from the surrounding walls/floors etc. Ideally, they need to be mounted on a hard surface that doesn't resonate; bricks, conctrete etc. in a sound insulated enclosure. Try the thick foam BUT, despite what all the manufactrer's would have you believe, a 2/3 bar pump is going to be bl**dy noisy on it's own. We have a whole house pumped system but the pump makes so much row when it kicks in (in spite of everything I've done to isolate it), we now only switch it on when we use the showers or the bath; & I know several others who do exactly the same!
 
R

roberta1000

Get a decent pump. Stuart-Turner cost more but last longer and run very quietly. I've a 3 bar one in my loft and you can barely hear it.
 
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Be careful if you insulate it. These pumps get hot because of the hot water and the motor generates even more heat. The lower spec ones are only rated for intermittent operation because they may overheat if run for extended periods. Putting it in a box will make things worse.

Check the manufacturers spec, regarding location, otherwise you might find it overheats if enclosed by sound absorbent material which usually is also a thermal insulator.
 
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Be careful if you insulate it. These pumps get hot because of the hot water and the motor generates even more heat. The lower spec ones are only rated for intermittent operation because they may overheat if run for extended periods. Putting it in a box will make things worse.

Check the manufacturers spec, regarding location, otherwise you might find it overheats if enclosed by sound absorbent material which usually is also a thermal insulator.
Sorry mine was not a good use of words; what I should have said was ISOLATE not insulate. &, as Stem says, be very careful about totally enclosing the pump in a small box as the unit must have good air flow. My Salamander pump is enclosed in an acoustically insulated void between the airing cupboard & the shower room which is approx 1m wide x 0.7 high x 0.4m deep; but in my view it still makes too much noise for continuous use as a whole house pump.
 
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Noise isolation mounts would be a good first step, as would flexible hoses between the pump and the rest of the plumbing to decouple it. They'd be a good idea anyway if the pump isn't going to be firmly located.
 
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Thank you to all for your posts.....BS3036...can you suggest where I can get some of this rubber foam please??

regards

Asgar
 
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I haven't tried for many years now. The original pump under our bath came supplied with a piece, which had a layer of something (like rubber?)stuck on top to give a firm surface.

Foam rubber (or these days probably foam plastic) is generally used to fill soft furniture items. It used to be available here on market stalls in great quantities, for example. That may point you in the right direction, or maybe someone else actually knows of a source. :D
 
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