Forum Discussion

Water-Bug's avatar
Water-Bug
Explorer II
Jan 31, 2015

Dewinterizing at 10 degree temp

Has anyone had any experience dewinterizing an RV that has been simmering at temps in the teens? More specifically is there a possible issue with attaching city water to a frozen RV. How long do I need to have the unit above freezing before turning on the city water?
  • My rule is, if it is freezing then use the fresh tank, and do not leave the hose attached or outside. It takes a long and very cold time to freeze "stuff" in the black and grey tank, plus it little freeze does no damage, however do not use the drain valves in extreme cold weather. A 1/4 cup of antifreeze in the drain saves the P traps.
  • We will leave soon and we do nothing to the water system until maybe down to alabama. Drink and cook with bottle water, flush toilet with pink antifreeze. Have the camper warm enough to be comfortable. Clean with wet wipes, etc until I feel comfortable that the tanks will not freeze.I had a freeze up in Texas once, will always wait and watch forecast.
  • We used to use our antique coach in temperatures below freezing all the time, not just down to little numbers, but some had a dash in front.....
    What it really all comes down to is simple.
    Is this unit built as a 4 season?
    Can you warm the trailer up now?
    If yes to the above, warm it up, put water on and clear the system taking as much of the red stuff out in buckets as you can. (Someone that came by asked what I had killed on the lawn.)
    As to putting water on, set up the dry hose, fill the potable tank, disconnect and walk the hose empty and take into the warm before you have 50' of rigid hose to manage. If you disconnect both ends and walk and coil, this it not that hard to do.
    If it is not a 4 season, buy a case of bottled water and drive south. But not today. Wait until this storm has passed.
    Matt
  • Water-Bug wrote:
    Has anyone had any experience dewinterizing an RV that has been simmering at temps in the teens? More specifically is there a possible issue with attaching city water to a frozen RV.
    Shivering, maybe, but not simmering! :)

    Frozen? What's frozen.. the water lines? Heaven forbid NO do not hook up water.

    And you shouldn't use the hose in freezing temperatures anyway.
  • I'm not sure I understand the question... Are you moving the RV out of the freezing temps or are you keeping it in the cold?

    If you move it out of the freezing temps, you are fine. Simply get to your destination and hook up to water. The water will flush out the antifreeze. When we go to Florida in February we just keep it winterized until we hit central SC and warmer temps. If we stop somewhere its still cold, we just don't use the water from our camper.

    If you are staying in freezing temps the water will freeze unless you keep the underbelly and all pipes above freezing.
  • When we were getting ready to leave our upstate NY cottage after the holidays earlier this month, the temps were running around 10-15 deg.F, so I fired up the two furnaces a couple of days ahead of time running on an external LP tank. With the temp set at 55, the coach was warm enough to start packing freezable items inside in a matter of hours. The day before we left, I hooked up the hose and filled the fresh water tank plus bleeding the air out of the lines and filling the water heater. At night, we left the cabinet doors open to keep them warmer. The morning we left, I cranked the temp up to 68 deg.F. On our trip south we saw freezing temps, at least at night, until we reached southern VA. We never had any problems with the pipes freezing or keeping ourselves warm.