what are you prespraying with?
This is only my perspective , I try to find a good basic powder that works really good and is cheap and that's my mainstay,,,
By saying that, looking at your pics, I would have doubled up on the chems and not used the boosters persay because its a residential... When I go to interlink, if they have anything that works good on sale ill pick up a couple of cases just for such jobs with cheap customers so I can ensure proper job quality... CHems are the cheap part of our business ! My labor and my knowledge of the job is what im charging for.
@Scott W will tell you that experience tells you how to handle these things so you can avoid them in the future. Scott points us to products all the time and Rob sells very good products too... But you need a Mainstay chem that you use on normal jobs so you can learn what it does, and you can guage how much to use... Todd uses a very good mainstay chem for basic cleanings...
I charge for scrubbing,, I double the cleaning charge to pull out my scrubber because its extra effort..... Pitching in extra chems to me is very cheap spray it rake it and extract ! But 99% of the time I can say "Sir with the amount of soiling and stains involved,, by scrubbing it I can get it 20 times cleaner than I could without, but it will double the cost of the job. Oh and that black stain is going to run you an extra 50 bucks to remove or patch,,, Then I go back to inspecting and getting ready but before I get the signature on the work order I ask if they are ok with me charging more to scrub and to remove the black spot...
Even if they say no,, im gonna do my damnest to get that carpet as good as I can get and if im not happy ill rip out the scrubber for free and do it. I had a lady once say Sir im not paying for that process!!! I said its ok Maam I just cant leave your carpet that way, my conscious would kill me all nite.... Ususally after seeing that they will pay the charge...
Some haven't though.
Every job you do is your calling card,, people will brag about you if you do great,, but they will bad mouth you if you don't make them happy...