There are 2 videos of it in action on youtube,just search tnt tire spa.The videos are of the first one I made and many changes have been made but they show the basic machine.The machine is fully self- contained with thermostatically controlled heater,a door operated switch so you don't have to turn it on and off and a reuseable filter.There are no studs or nuts to worry with,just put tire on hub,close door and in about 20 seconds you have a clean,almost dry tire.The chemicals,(prep), that is a major concern with using a spongue and bucket or similar method is avoided due to the chemicals floating on top and this machine draws from the bottom,keeping the chemicals off your hands.The unit can be used with or without tire wash chemicals and in most cases will run all day without changing water due to the baffle and filter system.Requires 5 to 8 gallons of water and you can even fill it before you leave home,avoiding water runs at the track.They are all smooth finish aluminum,fully welded with hardened stainless nozzles,all billet aluminum and brass components,come with adjustable spray wand with 25 ft. hose to wash your kart,car or whatever and are equipped with a GFIC for your protection.So stop treating your tires like dirt,take them to the spa!Can accept checks,money orders or cards thru paypal,thanks! 910 616-2662