[stevieg]

Hi,i am normally on the window cleaning forum but thought i would ask you guys, i have been asked to clean the cladding on a building .It is the vinyl type that is like the stuff on caravans. My pure water will get off surface dirt but not the ingrained black lines.I dont want to do it by hand with a pvc cleaner as it is a large,tall building.
any ideas? Can i put something in with my water(it would need to dilute in 1000 ltr tank)

Cheers Steve.