Forgot to also mention if you clean a really trashed carpet and have given it everything you have got then i will give my last spray over with m-power and just leave it, it can sometimes improve as the carpet is very slightly damp so the m-power is given a long time to try and improve the appearance so need need for another rinsing.
Question for john kelly can nemesis be used like this ie sprayed on the carpet after you have finished and yet be safe enough to leave on there without having to extract?
regards
matt