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Old 03-08-2020, 10:27 AM   #1
Schooner's Avatar
Join Date: May 2011
Location: Black Hills of South Dakota
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Brown Streak on Sidewall

We have a 2017 Pinnacle 36KPTS. We see vertical streaks on the driver's side sidewall. The streaks correspond to the aluminum studs in the wall. See photo. Has anyone else experienced this? Is the clear coat failing? Would a mild rubbing compound restore the color?
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Old 03-08-2020, 02:23 PM   #2
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Location: Minnesota
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Black streaks are mold/algae.

Brown? Question, is your gutter clean? Been parked under an oak or walnut tree? I get a muddy brown streaks from my black walnut tree if the gutters extensions are plugged up.

Brown, makes me think of rust, but as you say, there are aluminum screws, so not rusty screws. I would remove a screw or two, and check the color of the threads. If they are rusty looking, you have a water leak, at the screw. Remove each screw apply a tiny amount of sealant and reinstall.

Can you post a close up picture at the source?
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Old 03-08-2020, 03:56 PM   #3
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Even though they are supposed to be aluminum a check with a magnet might show someone slipped up and used steel screws.
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