I thought it would be 2-3hrs, why I asked was a brought a new machine 3 years ago and could never get the carpet dry, even after 5-6 hrs, so I stoped cleaning them and used sub-contracters instead, I used the machine my-self a few times went on a prochem course, still problems!!
Then the machines varible flow dial stoped so went for repairs (to my uncle) came back & well you would not belive the results I did this carpet yesterday and just as I was picking up my beer money the carpet was almost dry.
to think how many thousands this has cost me.
Dennis