Another issue I have is a noisy water pump , wake the dead of a night . It is 7 years old , do you think it's on the way out. No vibration fixed properly to floor.
Cheers
denmonkey said
01:33 PM Sep 17, 2019
did it used to NOT make noise and now it does? Is that what you're saying ?
Aus-Kiwi said
01:55 PM Sep 17, 2019
Is it getting air in pump on suction, inlet side ? Run M/T recently ? Has the mounting changed ? Is there anything touching pipes or pump ? Could be its due for retirement ? Does it clear after being run a while ??
Possum3 said
03:46 PM Sep 17, 2019
If pump is coming on in middle of night without taps being used - your plumbing system is losing pressure "Somewhere" or non-return valve is cactus.
goldcoaster said
07:33 AM Sep 18, 2019
It has made noise since I purchased recently , doesn't come on by itself , no air and mounts are good. Shurflo pump , I'm thinking pump itself might need replacing.
Thanks
Granty said
12:00 PM Sep 18, 2019
Both vans we have owned the water pumps have always been quite noisy even when new. I think it is par for the course. Rod.
Aus-Kiwi said
12:59 PM Sep 18, 2019
They sort of have to me mounted firm but allowed to move it that makes sense . Mine is mounted on board sikoflexed to rubber the pump is bolted to board . The pipes are saddled to prevent vibration . Even plastic type can rattle . Is there an accumulator? Acts like a shock absorber.
Baz421 said
08:13 PM Sep 18, 2019
goldcoaster wrote:
It has made noise since I purchased recently , doesn't come on by itself , no air and mounts are good. Shurflo pump , I'm thinking pump itself might need replacing. Thanks
OK before you buy another pump,
Unscrew the black end where wires go to the switch, take black section off and remove rubber diaphragm,, look for dirt etc.
Clean f necessary, then push the round hard black section that operates the switch to see if switch goes on and off.
This is the most common area of failure.
PM me if you want assistance, I overhauled 2 this week.
goldcoaster said
10:58 AM Sep 19, 2019
Thanks baz i will try that.
Cupie said
07:17 PM Sep 20, 2019
Noise is synonymous with 12v water pumps in caravans.
I always had trouble when SWMBO had her morning shower & hair wash with the pump going thump thump thump guzzling up all our limited water.
But I solved it.
Just went off for a short kayak paddle or push bike ride.
Came back & made breakfast ready for when she emerged with hair drier in hand. Smiles all round.
Went thru a lot of wasted time & effort, enclosing the pump in a soundproof box & fitting UBeaut shock absorbing feet.
iana said
08:39 PM Sep 20, 2019
Cupie, I thought noise was synonymous with women washing their hair!
Sarge9 said
10:15 PM Oct 4, 2019
The piston action of these common water pumps is the cause of the noise, jerking backwards and forwards and the noise factor is often increased by mounting them to a big sounding board like the van floor or cupboard wall. Even if a good antivibration rubber mat is used they still hammer. I mounted mine under the floor to a chassis cross member, on proper rubber with grommets on the bolts, I still find it embasingly noisy at night when cleaning teeth etc.
Hold it runnig in your hand it is quiet, bolt it to concrete not too bad, stick it in a caravan.... noisy. I have been tempted to hang it off a piece of car tyre under the van. Clearance is my problem.
Sarge.
Cupie said
10:26 PM Oct 4, 2019
Sarge9 wrote:
The piston action of these common water pumps is the cause of the noise, jerking backwards and forwards and the noise factor is often increased by mounting them to a big sounding board like the van floor or cupboard wall. Even if a good antivibration rubber mat is used they still hammer. I mounted mine under the floor to a chassis cross member, on proper rubber with grommets on the bolts, I still find it embasingly noisy at night when cleaning teeth etc. Hold it runnig in your hand it is quiet, bolt it to concrete not too bad, stick it in a caravan.... noisy. I have been tempted to hang it off a piece of car tyre under the van. Clearance is my problem.
Sarge.
I wonder how it would go fixed to a piece of rubber matting suspended from top to bottom inside a cupboard?
Baz421 said
05:38 PM Oct 5, 2019
Just overhauled 2 a couple of weeks ago, fietted a new one to van and checked a friends new one. The new ones were much quieter than previous models say 10-12 years ago. Problem is rearly electric motor itself but the 3 pump chambers generating the noise due to wear presumably on the drive plate.
Baz421 said
05:39 PM Oct 5, 2019
Ignore my spelling, i cant edit lol
iana said
07:55 AM Oct 6, 2019
Here are some exerts from the manual.
"Plumbing must have a minimum Inner Diameter of 13mm [1/2]. Smaller ID plumbing will cause cavitation, high backpressure, low flow and noise."
That is ID not OD, how many vans meet that requirement ?
And "Reduce restrictions on the pump inlet and outlet. This includes any shut-off valves, winterizing valves and
elbows with smaller inner diameters."
This requirement is important, any restrictions in the suction side will cause the pump to work harder, and make more noise.
It is one of the reasons I try to encourage those to fix the non return valves already installed rather than fitting another smaller one giving even more inline restrictions.
Tony Bev said
01:51 AM Oct 8, 2019
I have just recently changed my water pump, (Shurflo 11 litres per minute), with a new one
The noise is approximately the same, as the old one
In the past I have had a John Guest plastic fitting crack, and lost water
I therefore switch off the pump, when I do not require water
Another issue I have is a noisy water pump , wake the dead of a night . It is 7 years old , do you think it's on the way out. No vibration fixed properly to floor.
Cheers
Thanks
OK before you buy another pump,
Unscrew the black end where wires go to the switch, take black section off and remove rubber diaphragm,, look for dirt etc.
Clean f necessary, then push the round hard black section that operates the switch to see if switch goes on and off.
This is the most common area of failure.
PM me if you want assistance, I overhauled 2 this week.
Noise is synonymous with 12v water pumps in caravans.
I always had trouble when SWMBO had her morning shower & hair wash with the pump going thump thump thump guzzling up all our limited water.
But I solved it.
Just went off for a short kayak paddle or push bike ride.
Came back & made breakfast ready for when she emerged with hair drier in hand. Smiles all round.
Went thru a lot of wasted time & effort, enclosing the pump in a soundproof box & fitting UBeaut shock absorbing feet.
Hold it runnig in your hand it is quiet, bolt it to concrete not too bad, stick it in a caravan.... noisy. I have been tempted to hang it off a piece of car tyre under the van. Clearance is my problem.
Sarge.
I wonder how it would go fixed to a piece of rubber matting suspended from top to bottom inside a cupboard?
"Plumbing must have a minimum Inner Diameter of 13mm [1/2]. Smaller ID plumbing will cause cavitation, high backpressure, low flow and noise."
That is ID not OD, how many vans meet that requirement ?
And "Reduce restrictions on the pump inlet and outlet. This includes any shut-off valves, winterizing valves and
elbows with smaller inner diameters."
This requirement is important, any restrictions in the suction side will cause the pump to work harder, and make more noise.
It is one of the reasons I try to encourage those to fix the non return valves already installed rather than fitting another smaller one giving even more inline restrictions.
The noise is approximately the same, as the old one
In the past I have had a John Guest plastic fitting crack, and lost water
I therefore switch off the pump, when I do not require water