I have to design thrust blocks on a sanitary force main. I figured out the horizontal 1/16 bends. However, I have an 1/8 bend that are rolled down to drop the line to the pump station entrance and the next one rolls up to level out the line as it goes through the pump station wall. Should I use the largest of the thrust blocks as calculated for the one rolled down? The upper vertical bend thrust block or some combination of vertical and horizontal calculation?