We did an end of tenancy job last week, same synthetic carpet throughout and having bought the Solutions trial pack, thought we would have a go.
We first used Fusion 8 - hot, agitated and fresh water rinsed and it looked okay but the traffic areas were not great. We then re sprayed with HD - same method and it still didn't look great, so we made up some Powerburst and we started to see a difference within a minute of agitating it into the pile. The difference after rinsing was huge.
I appreciate that the microsplitters had done most of the work but they couldn't match the power of the big guns. We are going to play about with them however as we have not tried them with boosters. and having read some other posts, there is lots that can be done.
I do find Chemspec DFC to be the best that I have tried so far though.
Linds