I agree with simon, we use power burst on most carpets including wool and rinse with fibre and fabric rinse, (occasionally use prespray gold.)
I've yet to see a damaged wool carpet from using this in 13 years, (was previously high force !) and since we're there to clean dirty carpets you have to use what does the job best and quickest!
microsplitters are good on clean carpets
Was does make me smile when people say they are good but you have to do a lot of aggitation ! - why on earth would you swap a prespray that dissolves on contact and then rinsed straight out with the machine (hot water
) with one that you have to do a load of hard work with, and then say they prefer cold water also :
its beyond me, maybe from the manufacturers hype, i dont know.
each to there own, but i did a lounge carpet today, 16 x 12 (empty) in under 15 minutes, a quick prespray, set up the t/m and rinse and i'm off !
Not boasting, just more interested in speed than spending all day getting different machines out of the van
just my humble opinion
regards
steve