holstein13 wrote:
Ed_Gee wrote:
I do not understand why ANY dealer would winterize a motor home. To the best of my experience they are delivered dry . . . there is nothing to winterize. Air doesn't freeze!
I believe the manufacturers test their water systems at the factory before delivery so they are not manufactured dry. They must be winterized before leaving the factory. In fact, the manufacturer put a sticker on the window stating that they had winterized the coach.
I watched a documentary on Motorhome construction, they tested the water system with compressed air. They charged the system then sealed off the supply and then just watched the pressure gauge, if the pressure dropped they went looking for the hissing area with a parabolic microphone. If pressure held, all as good.
Air will leak faster than water and doesn't leave a soggy spot.
