Got a new pressure washer for crimble so bought one of the 'proper' foam guns and 5ltr of snow foam. It's amazing just how much foam is created.....
Only put about 25mls of foam in the 1ltr container and only used 1/2 to do 2 cars, so should last ages.
Works pretty well, seems to loosen all the dirt so most of it just rinses off, the water in my bucket was still pretty clean when I'd finished.
