How do I bleed hot water baseboard system when zone valves, drain valves, and pump are all on one side, and the shut off valves are on the other? From my research, mine is not a typical set-up. First, is it ok that the system is set-up this way? Does it function fully and optimally? Second, can the zones be bled properly? If so, how? Pictures Attached. One side of boiler has circulator pump, zone valves, and drain valves. Other side (return) has shut-off valves and cold water fill?