Noisy Water Pump.

Discussion in 'Motorhome Chat' started by Baker69, Aug 12, 2009.

  1. Baker69

    Baker69 Read Only Funster

    Joined:
    Jul 12, 2009
    Messages:
    85
    Likes Received:
    0
    Location:
    Worcestershire
    As we are fairly new to MH's (but not new to Caravanning) we were a bit surprised on how noisy our Shurflow Water Pump is. Well, I say the pump is noisy but it may be the Whale Damping thingy that's fitted. When the taps are turned on there is this knocking sound, I assume the Whale device is supposed to stop this?

    We imagined the water pump to be fairly quite in operation so we're a bit disappointed in this.
     
  2. old-mo

    old-mo Funster Extra Special Life Member

    Joined:
    Oct 16, 2008
    Messages:
    12,713
    Likes Received:
    38,544
    Location:
    Dorset
    My 5th wheel and the RV I have just aquired had and have the sureflow,, I tried mounting on rubber making sure the pipes were not touching any thing,,, but still very noisy. :Sad:

    Even went outside to listen as I thought I would get complaints,, but it does not sound half as bad out side,, so learned to live with it..:thumb:
     
  3. Douglas

    Douglas Read Only Funster

    Joined:
    Aug 22, 2008
    Messages:
    2,837
    Likes Received:
    401
    Location:
    South Wales,
    Has your tank run dry recently? if so it could be air in the pipes, turn your taps full on for a minuet or two to see if that clears it.

    Doug..
     
  4. DESCO

    DESCO Read Only Funster

    Joined:
    Mar 11, 2009
    Messages:
    2,651
    Likes Received:
    267
    Location:
    London
    Would do as old-mo says, make sure all the pipes are not tapping on sides this can be quite noisey, check pump is mounted on rubber.



    Dave:thumb::thumb:
     
  5. chris v

    chris v Read Only Funster

    Joined:
    Feb 14, 2009
    Messages:
    29
    Likes Received:
    0
    Location:
    Burton upon Trent
    Hi,
    And of course make sure that the screws that hold the pump down are not so tight that they squash the rubber mountings,
    Regards,
    Chris.
     
  6. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,442
    Likes Received:
    16,867
    Location:
    YO11 2BD
    other posters on this subject have suggested replacing a short length of the semi-rigid water pipes with flexy pipes where they enter/exit the pump.

    this has the effect of removing the 'pulsing movement' from the rigid pipes.

    another option would be the Fiamma surge damper.....a chamber in two halves seperated by a diaphram....one side is air under pressure and the other is water.
    as the pump 'pulses' the diaphram moves against the compressed air and stops the pulse from reaching the pipes.(allegedly)

    see it HERE

    second item down.
     
    Last edited: Aug 12, 2009
  7. Neckender

    Neckender Funster

    Joined:
    Oct 15, 2007
    Messages:
    969
    Likes Received:
    1,171
    Location:
    Stoke on Trent or Benidorm
    Mine was very noisey from new, also very loud outside, I found plastic swarf from tank in the pipework to the filter. I removed the obstruction and now water flow is very good and water pump is now almost silent.

    John.
     
  8. Landy lover

    Landy lover Funster

    Joined:
    Jul 11, 2009
    Messages:
    2,024
    Likes Received:
    3,501
    Location:
    Zummerzet
    We to have the same problem - I spoke with an engineer from CP tanks at the NEC show february and he suggested I crawl in the belly locker with a small screwdriver:Eeek: and on the end of the pump is the pressure seting screw and turn that back as all sureflow pumps are set at max pressure at the factory and really that pressure is never needed in the average van - I did that and whilst it has improved it a lot there is still a small amount of noise - he explained that the noise was caused by the system being overpressured shutting down and then restarted many times a minute.

    On day when feeling brave i will crawl back into the locker and turn it back a bit more :Rofl1:
     
  9. Douglas

    Douglas Read Only Funster

    Joined:
    Aug 22, 2008
    Messages:
    2,837
    Likes Received:
    401
    Location:
    South Wales,
    Sounds like more shoddy work by the converter. What is the name of the converter?

    Doug...
     
  10. Spacerunner

    Spacerunner Read Only Funster

    Joined:
    Apr 7, 2008
    Messages:
    609
    Likes Received:
    195
    Location:
    Hampshire
    I had the same problem. All I did was to use duct tape and tape the pipework nearest the pump to the floor directly beneath it. Cured the problem instantly.
     
  11. davetthedon

    davetthedon Read Only Funster

    Joined:
    Mar 25, 2009
    Messages:
    141
    Likes Received:
    0
    Location:
    Malvern, Worcestershire
    Its a camper!!... what do you expect?...

    Similar problem in the Autotrail Chieftain. Noisey, regular pumping up of pressure. Cured it after many attempts. Filled the cavity wall the pump was mounted on with expanding foam. Used Fernox pipe leak (similar to silicon used around sinks etc but does not harden) on the push fittings, cured air ingress into pipework. When driving with pressure up, the pipes used to leak very slightly, wetting the carpet, thats now cured using the fernox. Now it pressurises about once an hour if not using the water. Just a quick drrrrr. Also had crap in the filter. :thumb:
    ATB
    DaveT
     
  12. Landy lover

    Landy lover Funster

    Joined:
    Jul 11, 2009
    Messages:
    2,024
    Likes Received:
    3,501
    Location:
    Zummerzet
    No problem with the suppliers - seem like every one has a similar problem that they do not set the pressure to suit the vehicle needs at manufacture - simple job really its just I am on the large side and the belly locker is a space I shove things into to get rid of them - never know what you will find there ?? Never like doing that type of job on a site any way you will just get in there and some daft sod will come and talk to you just to see how long it takes me to get back out again.
     
  13. nomadic

    nomadic Funster

    Joined:
    Sep 27, 2007
    Messages:
    665
    Likes Received:
    174
    Location:
    Shropshire based
    I've read this thread with interest, as we too have suffered with a noisey pump, and over the years, we have :

    changed the rubber mounts.:Doh:
    changed the mount screws.:Doh:
    adjusted the torque of the screws:Doh:
    rerouted pipes:Doh:
    adjusted the pump pressure screw.:Doh:

    Suggested to our service agent that I fill the cavity under the bathroom with expanding foam, to encapsulate the pipes on route to the shower....did'nt do it as there ws a possibility that one of the pipes could become restricted if too much foam was injected.:Angry:

    So this morning I revisited the pump, checked the right angle connectors, planed a route for normal pipe and clips, then noticed a viberation betwween the hot and cold pipes, used pipe insulation to part them, no change. Followed the cold pipe run into the boiler area, found this pipe resting against the cut edge of a plywood panel, held it of, asked the boss to run water, it ran...pump silent.....another piece of pipe insulation in place, and we now have a very quiet surflow pump.:Eeek:

    Thanks everybody.:thumb:

    Nomadic
     
  14. Heyupluv

    Heyupluv Read Only Funster

    Joined:
    Oct 7, 2008
    Messages:
    3,862
    Likes Received:
    1,585
    Location:
    France,

    Check for air in the pump/pipes, and no leaks, make sure it is not sucking in air from anywhere, and make sure that your tank has not run dry, mine makes a terrible noise if that ever happens what "Dougcumiskey" said I think could be your problem, unless you know you are not dry/empty of water in the tank and you have not run dry before refilling as it can take a while to clean air out of the pump.......hope you find your problem soon, and its not expensive......................from Mel in France
     
  15. Baker69

    Baker69 Read Only Funster

    Joined:
    Jul 12, 2009
    Messages:
    85
    Likes Received:
    0
    Location:
    Worcestershire
    Thanks everyone for their comments and suggestions. I'll go into the van tomorrow and check it all out. :Smile:
     
  16. Uncle-Steve

    Uncle-Steve Read Only Funster

    Joined:
    Jan 24, 2008
    Messages:
    20
    Likes Received:
    0
    All the obvious things have been mentioned above about reducing diaphram pump noise, however I had used a Whale pump for years, this was always quite noisy. Anyway, one day its started leaking just before I was going away (last minute checks and all that...), I didn't have any spares so replaced it with a Fiamma Aqua 8, well... the difference was dramatic as I can hardly hear the new pump now! I'm not saying the Fiammas will always give the same quiet respoce, but it did in my case. BTW Shurflow and Posiflow are far more popular than the Fiamma's.

    Replacing like for like is not always very good, as some of the 'big' names make very poor submersible pumps which your not to run dry, however these can be replaced with a superior cheaper pump which can be used dry. So if your replacing worn out items, ask is there something better out there so it lasts longer etc?
     
Loading...

Share This Page