winterizing with compressed air

larry cad wrote:

JaxDad wrote:


It might just be easier to learn how to do it properly.

For several years I used the pink stuff, and several years ago, I decided to do the air winterize procedure. Come spring, I put water in the coach and guess what, I had a leak. Now, here is the interesting part, the leak was behind my shower, in the water control spigot. Even more interesting is the mode of failure. The water control valve has a threaded hole in the bottom, and there was a nylon 1/2" pipe plug in it. In the top side of the pipe plug, was a depression molded in during manufacturing. If you look at a nylon pipe plug, you will see it. Since the depression was facing up, it remained filled with a tiny bit of water during the winterizing. During the winter, it froze and cracked. When I put water into the system, it ran out the crack.

So, as suggested above, I learned how to do it properly. Properly would be to remove the wall around my shower every winter, remove the plug, empty out the tiny bit of water remaining after I use compressed air, replace the plug, and my RV is winterized.

Or, I can just use the gallon of pink stuff I always had used in the past. Even though I now know how to do it "properly"!!

:S

I know you believe the cause, but I have winterized HUNDREDS of Motorhomes with the exact same type faucet cartridge with the plug. NEVER has that plug held enough water to freeze AND EXPAND enough to crack. I go back to you NOT winterizing correctly and getting ALL the water out that air would get out. I run the air for at least 15 minutes and do not stop till all faucets quit spitting water mist. Doug