Shower thermostat

Discussion in 'Motorhome Chat' started by Reallyretired, Mar 10, 2011.

  1. Reallyretired

    Reallyretired Funster

    Joined:
    Apr 27, 2008
    Messages:
    5,703
    Likes Received:
    3,208
    Location:
    Eastbourne East Sussex
    Away at present on minimum facility CS in Warwickshire. Completely brassed of with being alternately frozen and scalded so ordering a thermostat from CAK tanks when I return. With the fittings it is the wrong side of £100 but if it works will be well worth it. Owing to its size I may have to fit it in a strange place.
     
  2. Jim

    Jim Ringleader

    Joined:
    Jul 19, 2007
    Messages:
    25,828
    Likes Received:
    76,108
    Location:
    Sutton on Sea
    In plenty of the older motorhomes I have owned the shower holds the temperature very well, but only after wasting half the water and a full five minutes getting it just right.:BigGrin:
     
  3. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    If you have a Surflo pump it should be ok, not sure if the pressure from a submersible would be adequate .. in either case, before buying, I would check that it is suitable for the pressure available.
     
  4. Reallyretired

    Reallyretired Funster

    Joined:
    Apr 27, 2008
    Messages:
    5,703
    Likes Received:
    3,208
    Location:
    Eastbourne East Sussex
    My pump is a Shurflo so should be OK. In previous vans I have not found it too much of a problem, but present van is very bad for this. It may actually be due to the output from the pump being too high as it cycles on and off with taps/shower on whereas some more feeble pumps, such as the pathetic little centrifugal in-line pump on my old KonTiki used to run continuously.
     
  5. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    An accumulator form Fiamma would reduce the surging .... http://www.marcleleisure.co.uk/store/fiamma-expansion-accumulator-tank-p-596.html

    would also save water and increase pump life ..
     
  6. Reallyretired

    Reallyretired Funster

    Joined:
    Apr 27, 2008
    Messages:
    5,703
    Likes Received:
    3,208
    Location:
    Eastbourne East Sussex
    Could help. The thermostat requires a min of 1bar however the accumulator can apparently be adjusted from its standard 0.9bar by pumping more air the other side of the diaphragm.

    I think I'll try the thermostat first and add this in afterwards if necessary as the accumulator on its own may improve matters but the temperature will still need balancing each time.
     
  7. Reallyretired

    Reallyretired Funster

    Joined:
    Apr 27, 2008
    Messages:
    5,703
    Likes Received:
    3,208
    Location:
    Eastbourne East Sussex
    Thanks for the helpful replies.
    I have solved the problem at zero cost. I found the problem, which only happens in cold weather, is due to the cold supply plumbing being heated at some points along its length by the hot air ducting.
    Solution is to run the cold water through the shower till it is consistently cold then adjust with the mixer and all is OK. :Smile:
     
Loading...

Share This Page