Hello, I'm currently trying to solve a problem involving hydrostatics, but I'm getting stuck when it comes to drawing the forces in the FBD. The original problem is here: Diagram & Problem Info This is my attempt at drawing the FBD: My FBD My calculations: R(water) = 187.3 kN R(mud) = 644.7 kN I think that should be correct. However, once I isolated the joint at the intersection of A,B, and C, there is no way I can get the joint to be in equilibrium. (See the bottom right corner of my FBD). The same problem occurs at D, where the compression force in member D only goes up vertically, but I also have a horizontal component to the reaction force at D. What am I doing wrong? Does anyone have any hints/suggestions on how to solve this? Thanks a lot!