Thanks for all your info chaps, very helpful, I am off to the cleaning show next week to have a look at a "starter set up"
As I run a carpet cleaning business this is just going to be an "add on service " as and when , and may build up to a "one day a week round" or for something for my son to build up during this summer when he finishes Uni, and for me to take up when he gets the work/job he really wants to do.
cheers
Paul.