Are all water pumps noisy

[DerryW]

Forgive me posting this question for the second time.
The water pump on our MH (see avatar) is extremely noisy. I’ve checked the rubber mounting feet, checked for leaks, checked pipe work is not failing on anything, in fact all suggestions from last posting, and no difference, It’s still noisy, not only from inside but if you stand close to the rear when outside.

Is there anything else I need to consider, or is it purely that they’re all noisy.

Thanking you in anticipation
Derry

 

[pappajohn]

Unfortunately, One man's noisy is another mans normal.
Impossible to say if its unusually noisy from a description.
One area of noise is plastic pipes touching wood panels of furniture near pump. The panels will act as a drum.

 

[Hirsch]

Having sorted the problem I experienced a couple of weeks ago (sucking air in between filter and pump), I have found the pump is noisier. No water or spluttering though. Hey ho

 

[Lenny HB]

Sounds normal to me, I assume you have a Sureflo pressure pump.
To make it quieter you could mount it on a piece of ply them mount that on high density foam.
Submersible pumps are much quieter but no where near as good.

 

[DerryW]

Sounds normal to me, I assume you have a Sureflo pressure pump.
To make it quieter you could mount it on a piece of ply them mount that on high density foam.
Submersible pumps are much quieter but no where near as good.

Hi Lenny. It's a LILIE Classic pressure pump. I assume it's the same as a Sureflo. I will try as you suggest and mount the pump on a piece of 18mm ply and high density foam. Do you mean something like Celotex insulation board ? Would you fix the foam to both the underside of the ply and then the original floor base (if so by what means) or leave it free floating as though to speak.
Thanks

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[bigwood]

The water pump in our Rienza is fitted in the bottom of the wardrobe on the back of the bathroom wall. The wall is very thin so a piece of ply has been screwed on to mount the pump. When we first bough the van it really was noisy. The dealers said it was not possible to improve the noise.
When I changed the pump in our old van I was advised not to over tighten the mounting screws compressing the rubber mounting bobbins.
I did this with the Rienza when I changed the pump and it made quite a difference. Whilst I was changing the pump I considered moving it to the outer wall but there just isn’t room with the water heater and battery charger in the same space.

 

[Terry]

I have some Inch thick rubber insulation. Mount the pump on something similar and it make it almost silentish

 

[Lenny HB]

Hi Lenny. It's a LILIE Classic pressure pump. I assume it's the same as a Sureflo. I will try as you suggest and mount the pump on a piece of 18mm ply and high density foam. Do you mean something like Celotex insulation board ? Would you fix the foam to both the underside of the ply and then the original floor base (if so by what means) or leave it free floating as though to speak.
Thanks

Yes Lilie is the German branding for sureflow. I just replaced the submersible in my Hymer with a Sureflow mounted it on 18 mm ply with 12mm car noise deading rubber underneath. Pump is screwed to the board, board is screwed to the floor.

 

[DerryW]

Yes Lilie is the German branding for sureflow. I just replaced the submersible in my Hymer with a Sureflow mounted it on 18 mm ply with 12mm car noise deading rubber underneath. Pump is screwed to the board, board is screwed to the floor.

Thanks Lenny. 1 point of clarity please. Did you screw through the board, and deadening rubber. i.e. Simply sandwich the deadening rubber between the board and final fixing location but not actually securing to the board.
Thanks

 

[PeteH]

Mine is typical Rapido, Mounted on top of the water Tank!. In effect it`s mounted on a Drum!. At the moment there is a 1" thick piece of "kingspan" underneath it. But it`s still noisy. I just live with it, but perhaps 20 years of living/sleeping alongside Huge Marine Engines makes you less concerned about a bit of vibration noise?.

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[DerryW]

Job Done.

Fitted a piece of 15mm high density foam between the existing mounting (12mm timber board) and the floor, I had to use longer screws, I also put a piece of foam behind the header tank (I think that's what it is) which itself made a difference.

Whilst the noise has not completely gone its a hell of lot quieter. On a scale of 1 - 10, 1 being silent 10 being really noisy its now a 3. Can barely hear the pump when standing outside near the garage door and much much quieter when inside.

 

[Skyway]

Nice job I going to give that idea a go where you buy the foam please

 

[Richard n Ann]

Job Done.

Fitted a piece of 15mm high density foam between the existing mounting (12mm timber board) and the floor, I had to use longer screws, I also put a piece of foam behind the header tank (I think that's what it is) which itself made a difference.

Whilst the noise has not completely gone its a hell of lot quieter. On a scale of 1 - 10, 1 being silent 10 being really noisy its now a 3. Can barely hear the pump when standing outside near the garage door and much much quieter when inside.

Good thinking, I avoided foam because the motor would soon crush it.. But add a board to spread the weight, genius I've got some of that white stuff you get in packaging, might be called closed cell foam or something

 

[Richard n Ann]

Done it, it's definitely quieter

 

[125BEER]

Sounds normal to me, I assume you have a Sureflo pressure pump.
To make it quieter you could mount it on a piece of ply them mount that on high density foam.
Submersible pumps are much quieter but no where near as good.

Just seen this reply and v.helpful tip.
Will look to do,

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[peterc10]

Submersible pumps are much noisier, and I don't agree with Lenny HB that they are not as good. The flow in our Hymer using a submersible pump is as good as the flows in my previous Adria which used a Sureflo floor mounted pump. The main difference is that when one of us gets up and flushes the toilet in the middle of the night it does not wake the other of us up, like the Sureflo used to do.

For the last 5 years we have carried a spare twin submersible pump just in case the original one fails. That has ensured that the original one is still going strong.

 

[Lenny HB]

I don't agree with @Lenny HB that they are not as good.

Pistols at dawn next time we meet.

 

[peterc10]

Pistols at dawn next time we meet.

Shower heads would be better ................

 

[bertiebasset]

I too suffered with a noisy pump but recently fitted an accumulator which has reduced the noise tremendously plus levelled out the pulsating when only on a low flow.

 

[Lenny HB]

Shower heads would be better ................

You wouldn't stand a chance against my 30psi pump.

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[JJ]

To reduce the time the noisy pump bothers you might I suggest you stop showering and washing and doing the dishes so often...


JJ

 

[Simon Meadwell]

My pump comes on in the night when nothing in use just for a short time . Anybody know why ?

 

[Spriddler]

My pump comes on in the night when nothing in use just for a short time . Anybody know why ?

If you have a pressurised system i.e. a pump with a pressure sensor/switch it's likely that there's a small water leak.
You can turn the pump off at night and there'll still be enough pressure left to rinse hands after a nocturnal loo visit.
The proper solution obviously is to stop the leak.

 

[sallylillian]

Forgive me posting this question for the second time.
The water pump on our MH (see avatar) is extremely noisy. I’ve checked the rubber mounting feet, checked for leaks, checked pipe work is not failing on anything, in fact all suggestions from last posting, and no difference, It’s still noisy, not only from inside but if you stand close to the rear when outside.

Is there anything else I need to consider, or is it purely that they’re all noisy.

Thanking you in anticipation
Derry

I like to hear my water pump, it's an alarm for leaks. Not just the obvious major ones but those sneaking up will always be given up by the out of the ordinary pump activation however minor.

 

[125BEER]

Found this thread by accident and has given me reason now to look at pump.

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[bridgedino]

If you have a pressurised system i.e. a pump with a pressure sensor/switch it's likely that there's a small water leak.
You can turn the pump off at night and there'll still be enough pressure left to rinse hands after a nocturnal loo visit.
The proper solution obviously is to stop the leak.

You may also find that the drop in pressure that kicks in the pump is nothing more than the water pipes cooling which can reduce the pressure over night. I spent weeks looking for a non-existent leak that was probably nothing more than a poorly adjusted pressure switch, a drip from a tap or a passing non-return valve. In the end i gave up fretting about it and now I just turn off the pump at night

 

[Stefan]

I read that by removing the rigid plastic pipe connection and replacing it with a flexible hose will resolve the problem. We have a FloJet pump which was very noisy and also had water hammer issues every time we switched any of the taps on. Fitted a coil of flexible 1/2" food quality hose and it completely resolved all the issues

 

[DerryW]

Nice job I going to give that idea a go where you buy the foam please

Sorry Skyway only just seen your question. I cut off a piece from an odd section of floor matting I had hanging around in the garage. The stuff you can get from Halfrauds or B&Q in packs of 6.

Once again, apologies for the very very late response.