I have a 110 pound pressurized sand blaster. my question is where can i find a nozzle set up that is larger then 3.2mm. Seems like the sand i use (medium size) gets clocgged up more then it actually works. Also i noticed on my friends blasting unit that the hose is about twice the thickness as the hose on my blaster. does this make a difference? where can i find a better hose and nozzle set up if so? thanks, Buddy M.