How effective is this on real dirty curtains Steve?
Its the only method i've used in 12 years, and to be honest you dont come across too many really dirty curtains and most off the time the bad stuff is removed with a good vacuum, i just dont see the point in splashing out on a machine for this!
My customers are always happy and most dont want to bother with taking them down, and i certainly dont,
still worthwhile doing if you are there to do the carpets etc
regards
steve