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bigred715 · 06-06-2015, 04:44 PM

Like a lot of others I use blue Dawn liquid soap about twice a year with a plastic hand brush on my hands and knees. Still have a lot of black marks on roof. We spend 3 1/2 months in Mesa Az. with the dirty air and I'm sure that doesn't help.

06-06-2015, 04:44 PM	#10
bigred715 Montana Master Join Date: Dec 2005 Location: Eugene Posts: 1,054 M.O.C. #5091	Like a lot of others I use blue Dawn liquid soap about twice a year with a plastic hand brush on my hands and knees. Still have a lot of black marks on roof. We spend 3 1/2 months in Mesa Az. with the dirty air and I'm sure that doesn't help.