was looking to rent a 500gal water buffalo for a big job i have coming up - and the place said its best to pull it empty... but whats the point of having it if its empty? is it customary to fill the tank on the job site for a really big job - 53K square feet of curbs and sidewalks.. I can use a hose for a good portion of the job... but some of the drive and parking lot is just too far away from a spigot... so I was looking at options... This is my first commercial bid... so I am learning here... thanks for your help!