Forum Discussion

kyclassa's avatar
kyclassa
Explorer
Nov 11, 2013

Winterizing RV

I just had our Class A winterized and was wondering why could you not just blow out all the water lines and make sure you have "NO" water in the RV during the cold months? Yes, I am new at Rving. Guess there must be a reason but just curious.
  • I blow mine out every year. I screw the air chuck/water line into the water inlet, hook the compressor to the input, set it to 50PSI and open the faucets until they quit spitting. I then go over the whole process a second time. Make sure there is no water left in the pump. I also do not use the water heater bypass but drain the water heater and put the plug back in to blow out. Add a little pink stuff to the drain traps and let it freeze. When I am ready to go in the Spring I don't have to flush the pink stuff. The whole process takes about 20 minutes and I get 2 years out of a gal. of pink stuff.
  • This is what our family has done with RVs and boats (Recreational Vessels) for decades. The only thing that is an issue is if it is old enough (mine is) to have sweat copper water system. Then any freezing can and may do serious damage that is either expensive or a lot of work to repair. But, if it is new enough to have plastic or even better a PEX water system then a little freezing in the sagging lines is a non-issue. It is, however, important to look for the low places that have metal fitting and be certain that those places are clear.

    Matt
  • I look at this way. A couple of gallons of RV antifreeze is cheap insurance (<$20) against plumbing problems come spring. A co-worker of mine blows out his mh every year and every spring takes it to CW to fix a plumbing leak.

    He says he can never get rid of the 'pink stuff' taste. So he just pays to fix his plumbing every year. :h

    To each his own...
  • That's all I do (blow out the lines)... My water lines are run along the floor until they go 'up' to whatever they feed.

    When I open the low point drains and open all the facets that gets all the water out of the facets.

    I then blow out thru the low points for several minutes until there is no more 'mist' coming out.

    Give all the facets one more go around and call it good..

    Oh yeah, don't forget the toilet and give the pump a run for a minute to get any residue water out of it too.

    I've never used the pink AF. Now, my area does freeze at times, but not for very long stretches or below zero or anything like that.. Never had a broke water line in over 11 years.

    Most folks will do what is comfortable for them and if that's just blowing that's their call. If they like the pink AF, that's fine too.. That's why they have different ways to accomplish the same thing!

    Good luck with whatever method you choose! :)

    Mitch
  • You could, But there are low points in the water lines and if you don't get 100% out then you risk a ruptured line. Better safe than sorry.