I went and measured a job today for a local property management that's huge. I've not calculated all the measurements yet, but I'm guessing 45-60k square feet of DIRTY tile and grout. How low would you guys go on pricing for this kind of volume, and how would you handle the job? It's a lock-in, and I'm running a porty. Gonna need fill and waste tanks, and a 100 gallon tank weighs a LOT when full of water. Is there a cart that will support this kind of weight? Any suggestions from people who've done jobs this size much appreciated.