Who on here uses snow foam ??? have been looking at getting it as the T5 is a big old girl to wash by hand. Is it a caase of spray it on, let it sit for a few mins then rinse off, dry, job done or is it used as a Pre wash, as in spray the foam on let it do its thing, jet wash it off, wash vehicle again with good old bucket and sponge then dry. Have done some research into it but have found its used as both ??? :-# *-) What do you do ???