Just purchased the tex finish to begin doing smaller jobs. I had never used one...only researched how to use. I did a trial and error run my back porch...knockdown style...not a complete failure, but definitely left me with a few questions. I used a bag of texture mix(Home Depot) for the job...it was somewhat "soupy" and when I sprayed up to the ceiling, it seem like there was not enough pressure to get it up there. Was this because the consistancy of the mix? I know that if it is too thick, it wont run through the system. I used the large tip and low air(for "knockdown")..played around with it for a good 1/2 hr. My concern is not knowing specifics factor - what to look for - I spent alot of money need to know if possibly the machine has a flaw, so I could return it - more than likely I am hoping that the flaw is with me the user, and this can be fixed with the right advice. I have only seen texturing done once....drywallers using a hopper to apply orange peel on one wall. The way that it seem to spray out of the unit was nothing like it sprayed when I did it....they had basically the same machine too. Any advice would be appreciated. Thank You 