I think you suck at carpet cleaning. reminds me of those guys who offer $10 bucks a room. in and out in under 20 minutes. High water flow, Plain water rinse, Dish soap for a prespray. man your repeat customers must hate you if you have any left. I thank God in my case I had a guy like Als carpet cleaning to fix what Full "stink" Ahead did to my carpets. Smelt like azz and foot fungus.
Hey I am poking fun lol use alot less water, jet down to a smaller jet and please stop using power burst. That stuff is a fart in a jug. ever noticed how it stinks up the van after sitting for the weekend? yup.
Use milgo and 1 oz of citrasolve per 2 gallon mix of milgo as a prespray. and Clean Rinse. let the milgo set for about 20 minutes. If your using over 400 psi in your line? you are litterally power washing dirt to the bottom of the backing material. Yup even at the custys home. Thats not a good thing at all.
I get about two to three calls a week because of this issue. and make sure you make dry passes.
Just remember your not washing a car. your washing a sponge and if the chems you have bben using build up into the padding it will prematurely fail and become worn thin very very soon.
Much love man remember low pressure, smaller jets = a good stink free cleaning. and use powerburst for restaurants