Jamie, that was an excellent write-up on winterizing the coach! For anyone who decides to blow out the water with air I would like to offer a couple of cautions.
Be sure to turn down the pressure on your compressor to around 50 psi to prevent possible damage to your water lines.
Make SURE you use an oilless compressor, a compressor with lubricating oil can contaminate your lines. Oil contaminated water lines can cause seriou health issues!
There are pros and cons to both sides of winterizing with antifreeze or air. Whichever method you choose, be through, don't forget the drains, outside sinks and showers. Take your time and avoid problems in the spring!
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