Draining down for winter

Discussion in 'Auto-Trail' started by Slackhouse, Nov 24, 2010.

  1. Slackhouse

    Slackhouse Funster

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    Hi - We have a Moican and there is a small blue tap beneath the water fill point. Does this drain the fresh water tank or just the hot water heater. When I opened it to drain down very little water came out :Sad: so I emptied the tank by using the internal taps and passing out through the grey water.

    Any advice on draining down would be appreciated.:BigGrin:

    Thanks
    Pete
     
  2. lorger

    lorger Funster

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    Hi dont know about your van but ours has a valave that does the hot water tank and one outside that does the fresh water one. I would assume there will be a valve to empty it dont know if it will be a separate one though.

    Not much help but gives you an idea.

    Gerry
     
  3. pappajohn

    pappajohn Funster Life Member

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    Hi Pete,

    dont know the mohican but the fresh tank should have a seperate drain tap...it may be down the back or side of the tank out of view...the kontiki tap is a pain to get at down the back.

    the boiler should have its own drain tap/bung on the heater body.
    if its a bung it will be outside at the bottom of the heater vent.
    if there is a flip tap next to the boiler then operate that....its an automatic cold weather valve to prevent freezing and will drain the boiler.

    also, does the toilet have its own flush tank or does it use the fresh water tank ?

    if it has its own tank then drain that as well....usually a clear 'sight' tube next to the cassette.
    simply remove the filler then pull off the upper end of the tube and aim outside the locker.

    when draining, open all taps and set mixer types to the center position then leave like that 'til you need to refill later.

    remove the shower hose and blow down it to clear water from the mixer tap (taps open)...leave it off as above.

    if you have a water filter, drain and remove the filter element, if it has one, as it may freeze and crack the housing.

    lastly, operate the water pump for a few seconds when the system has been drained.....any water in the pump and it will freeze, usually cracking the pump casing.
     
  4. MikeandCarolyn

    MikeandCarolyn Read Only Funster

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    Our LMC van has a Truma boiler with the usual dump valve that operates at below about 8deg C or can be operated manually by pushing it down.Our fresh water tank has a 'bung' or 'plug' which can be reached by unscrewing the 5" cap and reaching into the corner.
    Hope that's some help to someone lol
    Mike.
     
  5. bob and jules

    bob and jules Read Only Funster

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    The blue external tap is drain for the fresh water tank only. If its like our Chieftain you will have to unclip it from the body to allow it to get lower to let all the water out. Dont forget if youre on a slope or a camber away from the tap it may not all empty out. The only way to get it all out ( that I know of ) is by running the internal taps dry. A liittle bit left in the tank shouldnt cause too much of a problem because its got room to expand, but the pump and taps need to be water free.

    Hope that helps
     
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