I have been running a sediment model (HEC-RAS v5.0) with a series of sediment inflows at different sections along the river. When I look closely at the accumulated sediment in and out of each section (using output level 6) and the discrete sediment included at specific sections (input through the sediment input window), sediment is being added at the correct locations but is also added at the next downstream section for some (but not all) of the cross-sections at which the sediment input is defined. This effectively doubles up the sediment load at different locations of the model causing havoc with the sediment concentration estimates. Any suggestions?