The drawings shown are some of the most common tank forms. The top of the tank is usually level and square to the vertical end panel. If your requirements are different, please draw the tank on a separate sheet with as much detail as possible. The dimensions indicated on each drawing are necessary for us to produce a quote.
The filler height of your tank is the height above the tank at which the filler is located, not the overall pipe length between the filler and the tank.