Blowing out water lines in Class A
Apologies if this was answered in previous posts. I suspect there is a very simple answer. This forum and YouTube have been very helpful yet I have one open question: I plan to winterize my RV us...
Forum Discussion
dodge guy wrote:2oldman wrote:dodge guy wrote:Water lying in a low spot doesn't present much of a breakage risk, unless it has no room to expand.
Too much of a chance of water laying in a low spot and breaking open the line when it freezes.
Water freezes in any direction it wants! again. not worth saving $10 for that chance!
If done properly, there's no chance of freeze damage when blowing out the lines; it's just as reliable as antifreeze. Problems in either case usually occur when someone doesn't follow the right procedures, such as by forgetting about a fixture.
It's not just saving $10 or whatever, it's also saving the aggravation and time of making a half an hour trip to Wal-Mart to get another jug of antifreeze, and on the other end the aggravation and time spent rinsing out the residual antifreeze from the water lines.
The idea that blowing out the lines is somehow inferior to using antifreeze is incorrect, in my opinion. Both are perfectly valid and effective ways of winterizing, and each has its own advantages and disadvantages. For that matter, it's also possible to design a water system such that it can be entirely drained purely by gravity, though this is usually not all that practical in an RV partly because it doesn't always sit precisely level. I've known of at least a couple seasonal houses or cottages that are constructed this way.
