Pretty well equipped for most cleaning jobs but having finally opened the awning for a clean, the mould and general muck on the vinyl will NOT come off.
mine has spots like that i have put it down to leaves leaking resin, i say that because we go to SE France a lot and it was resin from the trees, even difficult to clean off when fresh as it is very sticky and tar like.
John
ps the roof corrosion is my main worry at the moment
I had some reddish brown streaks on the underside of mine. They came off easily with Flash surface wipes. It may be coincidence but they were lemon scented and apparently lemon juice is good for removing rust stains. Worth a try anyway.
Probably not to everyones liking but
Had the same problem and tackled it with Ajax and a brillo, very messy very time consuming but worked a treat.
dave and lisa