Yes I agree def a B/W, apart from the pattern and finish those pressure marks are unique to dense popyprop straight yarn pile carpet. Personally I think encap is a massive backward step in our industry. Its simply a case of manufacturers and suppliers reintroducing a form of the old shampooing methods that died a death long before most present CCs were born or at least thinking about becoming a CC. The manufacturers etc that are pushing this thing now, have realised this, and are preaching to a new unaware audienceand, but I am old enough to remember those days. In fact I started off with a DRY foam carpet deterger in 1980, and whilst it left a clean appearance, like Mike says it didnt last very long. I wouldnt touch the stuff myself, but like they say older and wiser.
Dave.