Could anyone offer me some advice on getting the yellow stains off of my awning. I think it is sap but not quite sure. I have soap that takes the black streaks and pink fungus off but it won't touch t...
Never had a problem with 3 different awnings on 3 different 5th wheels. I start at one end....spraying the awning from underneath...walking backwards....spray till you are done. Roll it up....20-30 minutes.....unroll......start spraying as you walk under the awning outwards. Never got anything on the 5th wheel....let it dry....looks like new. This works for me....but whatever works for anybody else is fine.