[MMI Enterprises]

It'll take hours due mainly to refilling...They are always good though as a spare application method in a pinch or for more concentrated spot cleaning. Still very common for commercial carpet care industry actually..Used to spray thousands of sq. ft. with them to bonnet clean large buildings. They somewhat frowned on for roof cleaning due to the lack of volume. If you must use just make sure the inerds are proper materials for what yer spraying (maybe that viton stuff), that you don't mix chems that create pressure expansion within tank (blow self up), and have a filter on the uptake tube inside (they like to clog up). Chapin makes a decent trigger/wand that can be taken apart easily and cleaned really fast. After you pop the trigger off ya use it as a wrench to get farther into it...I also like how their wands and tips are standard threaded and can be used off metal 1/8" npt extensions used in the pressure washing side of things..