Roof spots
I just bought a new coachman Apex 300. We have had it about a month now and I noticed some spots on the roof that look like little rust spots and they do not clean off. Its does not look like ...
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If your rig was transported by rail, they could be iron ore deposits. I had that on a white car I bought years ago. It was traced back to debris on the train landing on the car and then rusting while in transit.
