I've been thinking about getting snow foam for a while, and had the offer from a mate to borrow his to see if I liked it. A sort of try before you buy. anyway not that impressed, but don't know if there was a problem with the foam or the lance but it didn't come out very foamy, it was just like the shampoo that comes out of the local jet wash, just watery white stuff. It was maguairs snow foam and a Karcher lance, and I was playing with the + and - tap to try and get it to foam, but no luck!! Any ideas what the problem could be? Is this a common problem?