Right my wee faithful cheap Nilfisk power washer has died. What do I replace it with?? Parent dropped off a B&Q own brand one to tide me over but I let was junk. Looking at a new Karcher K5???? I use snow foam so an attachment for that is a must. Think the Karcher now has a button in the lance to switch on detergent, assisting I can fill that with snowfoam? Any one got a good model to go for??