I cringe when I see it!

Hi all, I have just returned from the caravan storage compound where I thouroughly cleaned my van. You will note that I say cleaned and not washed. I never clean my van with water apart from the odd occasion when I do the roof (which I hate) which is almost impossible to clean without it, although with a Bailey, I'm sure I could get on top and clean it without but I won't! The guy across the way was doing his and was merrily throwing buckets of water at it to rinse after he had scrubbed it with a bucket of water and brush! Don't caravans have enough to put up with with the English weather? I have never found a need to wash with water, just Autoglym polish let it dry and polish off. Van looks fabulous and no excess water anywhere. Just a thought!