Blowing out water lines for winter storage.
Last night I decided to blow air through my water lines to drain for winter. I started with the low point drain caps both off. I used the blow-out attachment to connect my compressor to my city wat...
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I never use the water heater by-pass. Just drain the water heater first and reseal it, then blow out the line farthest to closest front to back, then do each low point drain again. Also shoot some air thru the black tank flush if you have them. 60 psi is a little high, I use 45 psi. I thought the max psi from most trailers was 50 psi. Check your owners manual for you proper information. I have seen some water heater by-pass systems use two valves. I am not sure what you may have. No make or model in your post.
