I have a white Haulmark enclosed car hauler. After a few periods of rain, I end up with dark stains down the side of the trailer where the water runs off. These stains will not wash off with soap. i even bought some industrial bus clearner that does not work.
Anybody know of anything to try short of having it buffed? If I do have it buffed, anybody know anything that will keep the stains from returning?
Any input is appreciated. It sucks to have a trailer that is always dirty and I don't want to have to keep having it buffed. BTW, in-door storage is not an option right now.
Thanks
Anybody know of anything to try short of having it buffed? If I do have it buffed, anybody know anything that will keep the stains from returning?
Any input is appreciated. It sucks to have a trailer that is always dirty and I don't want to have to keep having it buffed. BTW, in-door storage is not an option right now.

Thanks