I would first like to say this is a great site. I have picked up great info. I started p.w.ing twords the end of last season. One piece of equipment that I was told I couldnt live without was the X-jet. This tool has not impressed me that much. I have done about five houses with it and have not got the results that I have read about. yes, I have the right size for my unit, I mix 1.6 gals of clorox with dish soap, tide, and jet dry in a 5 gal bucket. It applies chem well up to 20' and i cant expect more for application. I let chem dwell for 3-5, but when I try to rince at 20' I just don't get the result that I am happy with. At 20' normal dirt and dust will get removed, but mildew or heavy stuff just remains. Is this normal. Most of my houses I have had to app. with the x and rince with a tip. What am I doing Wrong, or is this norm?