are you saying that the neutrals should be bonded together in the trough but not the grounds? To me that would make no sense because they are already bonded together in the CT cabinet. If they get bonded in each disconnect does that mean we need 3 seperate cold water grounds and 3 seperate sets of grounding electrode conductors? We were liking the engineers suggestion because we could bond everything in the trough so we would only need to pull 1 cold water and 1 to the rods.