How much does septage weigh?Question:Anyone have a link or documentation on the average weight of septage? Answers: Water weighs 8.34 pounds per gallon. I use this number and, with a little variation, it works for septage as well as grease trap waste.***Start with the weight of water. The weight of septage will change depending on the total solids content.***I’ve always assumed grit weighs a lot more than septage, and could cause a weight problem if let go for long periods. It should be the same weight as sand.***I just did a quick Internet hunt and found that water has a
