Crown RV and boat cleaner-black streak remover
is the best product I have ever used for the intended purpose. I have previously used nearly every product suggested on the forum, with mixed results. Another plus for Crown is, it is made in the U.S.A., in Kentucky.
As for an awning cleaner, the previously recommended TSP/bleach solution works very well. I mix a cup of TSP, and about 3 oz. bleach, in a 5G pail of water. Thoroughly wet the awning with the solution, roll it up for around 10-15 min., unroll and wash again with the solution, then rinse. The original use for TSP (Trisodium Phosphate) was to remove wallpaper.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"