Like I said before, I am the Authorized Detailer for Formula D. Which is a drift/car show coming to Houston in June. I have to bring my own water. So therefore, I am ordering some QEW. I don't know how much water to bring. There's supposed to be 20 cars to do, but i'm not postive on the count. How many gallons of water should i bring? Also, I'm worried about polishing the race cars with vinyl stickers on the body and what not. I'm worried that polish and wax will build up on the edges on the stickers and turn them white. How should I avoid this? I'm sure i'm going to be nervous as hell when this comes around.