I just recieved a catalog from Rittenhouse and noticed that it had this automix system that is used with skid sprayers to eliminate having to mix up the chemicals in the tank. The mixer is installed between the pump and the hose and the product is siphoned out of a jug. They say that if you want to change chemicals all you do is switch jugs. It seems pretty slick, no price mentioned. My question is has anybody had any experience with a system like this, either good or bad. The one thing that has been holding me back from getting a larger sprayer is dealing with leftovers, ( I know you shouldn't have leftover but sometimes it happens ) and rinsates. It seems that this system would eliminate both of these problems. Any opinions?