Draining water system down for winter

Discussion in 'Top Tips & Tricks' started by ramsthom, Oct 3, 2018.

  1. ramsthom

    ramsthom Funster

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    Don't know if this has been mentioned before and I know its a tad early but I picked up this tip to help clear the hot and cold water pipes when preparing for the colder weather. Drain down as usual and using an inflated balloon attach it to each tap and let the balloon deflate hopefully blowing any residual water out of the tap and lines. Tried it last year and it worked ok.
     
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  2. namwaldog

    namwaldog Funster

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    I wonder if you filled the balloons with Helium, it would make the pipes squeaky clean ?:whistle::whistle:
     
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  3. peterc10

    peterc10 Funster

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    Don't be silly, but it would reduce the weight
     
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  4. Wildbill

    Wildbill Funster

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    I just blow Down the shower hose to clear most of the water don't know if I get it all out but never had a problem
    Bill
     
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  5. hymerman

    hymerman Funster

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    Also leave all the taps open , then if any residual water does freeze it can expand along the pipe instead of splitting it, worked for me for a number of years.
     
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  6. hymerman

    hymerman Funster

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    Forgot to say but leave taps open in mid position to cover both hot and cold feeds.
     
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  7. Yorick

    Yorick Funster

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    Open all the taps and go for a short drive :)
     
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  8. daveandsan

    daveandsan Funster

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    I just attach the compressor to the shower hose, just make sure the other taps are open. :)
     
  9. Delboyarapaho

    Delboyarapaho Funster Life Member

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    I think you might just have them laughing like a drain :)
     
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  10. Reallyretired

    Reallyretired Funster

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    I also just blow down the shower hose. Taps open and the shower head on the floor of the shower so any water can drain out. Grey tank empty and the drain tap left open.
    I did have a problem last year though as heading to Spain in February the drain tap froze open so I was an involuntary grey waste dribbler for a day till it thawed.
    Leaving it open helps to prevent smells as the anaerobic bugs responsible for bad tank smells don't like fresh air.
     
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  11. Pausim

    Pausim Funster

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    I fitted a Floe device and was very surprised how much more water it purged from the system after the normal drain down. The inflated balloon probably achieves much the same and would be cheaper.
     
  12. bigalw35

    bigalw35 Funster

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    So what is a floe device ?
     
  13. Pausim

    Pausim Funster

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    Floe make devices to help drain down. My version allows you to connect a tyre pump to the system but there is a version that includes a compressor. I found it on the internet.
     
  14. tonyidle

    tonyidle Funster

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    I keep the van at 5 degrees or so all Winter.
     
  15. two

    two Funster

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    I wonder how many people do nothing, other than drain down, and get away with it?
     
  16. bigalw35

    bigalw35 Funster

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    at what cost ?, November till March ??
     
  17. tonyidle

    tonyidle Funster

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    No idea but l use a 600w greenhouse heater on frost setting. I've been doing it since our caravanning days. My off-season is mid-November to the first week in March minus a week just after New Year. There aren't too many nights during a 'normal' Winter where the temperature is below 5 deg C.
     
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  18. Rockcrawler

    Rockcrawler Funster

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    Sounds like a great idea except mine has a one way valve fitted so not quite sure how I will get all the water out of the pipes
     
  19. Yorick

    Yorick Funster

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    My van is 21c all winter :)
     
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  20. Pausim

    Pausim Funster

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    Drained down yesterday, for the first time since moving to a new storage site. My new parking position leaves the moho slightly tail down and this made a big difference to how much water was left in the water heater after the normal drain down.

    Having let the water fully run out of the drains I followed my normal procedure and attached my tyre compressor to the Floe connector. The first indication that something was different was the sound of bubbles blowing through the water heater but no more water coming from the drain. Having closed the hot water drain I then worked through the system tap by tap. Having removed the extra litre or so that normally lies hidden in the pipes I found that there was hot water flowing out of the shower tap in the cold position. Subsequently I drained about 2 litres of hot water via the cold. My theory is that the cold inlet to the hot water heater lies at the back of the unit but the normal drain does not and that the air pressure in the sytem pushed the water back out through the cold feed.

    I am satisfied that I have now drained the system properly but was very surprised by how much difference being just a little bit off level made. Not something I previously paid much attention to.
     
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