Grundfos Booster Pump (3Bar)

cabledude · 05-01-2011 10:38PM #1

Hi Guys'

Recently had a 3 bar booster pump fitted in the hotpress and am looking to dampen down sound from this when running taps at night when kids asleep.

At the moment is is mounted on a block wall with standard angle brackets under small piece of timber.

Would putting rubber or similar between wall and brackets help.

Can pump be enclosed ( obviously not fully ) a certain amount in something like 50 mm kingspan???

Any ideas folks.....

This thing is fu**in annoying.

sky6 · 06-01-2011 01:48AM

Yes you are on the right track. If you can place rubber under and behind the brackets it should dampen the sound. Also you suggestion to encase it on 50 Kinspan should help. Just make sure to leave sufficient room to prevent the pump from overheating. Although as it does'nt run continuous it should'nt be a problem.

Buford T Justice · 06-01-2011 01:50AM

It'll reduce the noise no doubt, but it won't get rid of it. Just so you know, it'll only reduce it by a small amount....

cabledude · 06-01-2011 07:14PM

sky6 wrote: »

Yes you are on the right track. If you can place rubber under and behind the brackets it should dampen the sound. Also you suggestion to encase it on 50 Kinspan should help. Just make sure to leave sufficient room to prevent the pump from overheating. Although as it does'nt run continuous it should'nt be a problem.

was thinking of putting a 4 inch round vent on the underside of the shelf for ventilation. it cost €570 and i'm worried about it overheating.

Joey the lips · 06-01-2011 07:46PM

Silicone the pump to a tile and silicone the tile to the floor. put a large amount between the tile and the floor in blobs. Use bits of wood to hold the tile up till the blobs set.

It works great.

cabledude · 06-01-2011 08:37PM

Joey the lips wrote: »

Silicone the pump to a tile and silicone the tile to the floor. put a large amount between the tile and the floor in blobs. Use bits of wood to hold the tile up till the blobs set.

It works great.

joey,

pump is not resting on floor of hotpress... its mounted on a shelf half way up back wall of hotpress

Joey the lips · 06-01-2011 09:13PM

cabledude wrote: »

joey,

pump is not resting on floor of hotpress... its mounted on a shelf half way up back wall of hotpress

You did say that... Sorry. Any chance you can post a picture. I imagine it will be noisy with the vibration & noise traveling through the stud

cabledude · 06-01-2011 10:41PM

Joey the lips wrote: »

You did say that... Sorry. Any chance you can post a picture. I imagine it will be noisy with the vibration & noise traveling through the stud

not a stud... 4 inch block. internal wall downstairs. will get a pic up asap.....

nophd08 · 06-01-2011 11:57PM

cabledude wrote: »

not a stud... 4 inch block. internal wall downstairs. will get a pic up asap.....

Maybe something like this cabledude http://www.ava-antivibrationmountings.co.uk/?gclid=CIGvwIbWpqYCFQZO4QodURHeZg
Apologies to mods if I'm not suppose to post this link. I'm in no way connected to this co.

antoinolachtnai · 07-01-2011 12:06PM

Why not make a lead box rather than a kingspan box? It will be smaller and will conduct heat.

Is it making the wall vibrate? My own thought is that the pump would be better sitting on the floor, on the rubber feet that are supplied with it.

The other possibility is to switch off the pump overnight, either with a timeswitch or a remote control socket switch.

cabledude · 07-01-2011 04:13PM

antoinolachtnai wrote: »

Why not make a lead box rather than a kingspan box? It will be smaller and will conduct heat.

Is it making the wall vibrate? My own thought is that the pump would be better sitting on the floor, on the rubber feet that are supplied with it.

The other possibility is to switch off the pump overnight, either with a timeswitch or a remote control socket switch.

Cheers for the reply.

For a whole load of reasons it couldn't go on the floor. I've put rubber strips between brackets and wall and this has helped quite a bit....

I've thought of turning it of overnight but it's really in the evenings when kids are in bed and we are having showers, brushing teeth etc etc that it's an issue.

A lead box. Would you care to elaborate on that. Can they be bought???

cabledude · 07-01-2011 04:19PM

nophd08 wrote: »

Maybe something like this cabledude http://www.ava-antivibrationmountings.co.uk/?gclid=CIGvwIbWpqYCFQZO4QodURHeZg
Apologies to mods if I'm not suppose to post this link. I'm in no way connected to this co.

Cheers for that. I've put in rubber strips and that has helped, noise cut by about 30-40%

paddy147 · 07-01-2011 10:43PM

cabledude wrote: »

Cheers for that. I've put in rubber strips and that has helped, noise cut by about 30-40%

The Grundfos 3 bar pumps arent silect running,they will chuck out a bit of noise,as do all of them.

This is where mine went (on the floor in the hot press).

And thanks to joey the lips,with the tile and silicone sealent trick,its not as noisy as it used to be.

More like a very light humming noise,than a big loud vibration noise,like it used to be.

Grundfos Booster Pump (3Bar)

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