The worst part of that little demo (besides the 100% duty cycle on the wand trigger) is that is a DD wand, meaning it has TWO vacuum slots, as in twice the grab on the carpet, so you are dead on with the weak vacuum, ain't no way a guy could one hand that UN-glided wand if it had some reasonable vacuum. Betcha that waste tank has two vacuum relief valves set at 10"hg.