Trough or no trough?Question:I need some help. I am having a tank fabricated and the company does not think I need a full-length trough on the tank. They say all I need is a 4- or 5-foot piece up front and the same in the back. Also, the builder doesn’t recommend using any membrane (rubber, wood) between the trough and frame rail of the truck. This is the only manufacturer I have come across that deletes these items. Is this a big deal or should I spend my money on something else?Answers:Dropping the membrane between the tank and frame
