For how long before extraction? Im talking dwell time before agitation. Ultimately more time of each (TACT), would be better. Sometimes i dont even agitate, i just let time do its thing and the carpets come out great. Either way, whatever works, works. You use the trex though, right? Im going to...
If you have no agitation then what do you do? More chem, heat and DWELL time to allow the chem to seperate the dirt. Thats why i think agitation after dwell is best. You let the chem do its thing.
Whats more effective, chems that are just sprayed or chems that have dwelled?
Tell him you just got sick and need him to clean the rugs instead. Tell him not to worry though, you are going to wire him all the money he needs to get the job done, plus a little extra that he must immediately send back to you with no hurry.
It contains a certain ingrediant that so far is working extremely well. Ive seen his vid of the concoction that he puts together, i think that is what it is plus this one ingrediant. Works well so far.