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Purge Hydronic Heating System

alex081291 Member Posts: 2
Can someone help me figure out where to purge my system from exactly. I’ve looked at diagrams and I can’t quite make out where I should purge from. Initially my thought was the three ball valves on the right of the picture but that doesn’t seem to make sense. Would truly appreciate the help


    HVACNUT Member Posts: 5,038
    Go with your original thought. 
    Do each one separately. Zone valves must be open.
    Connect drain hose.
    Close ball valve.
    Open drain valve. 
  • alex081291
    alex081291 Member Posts: 2
    Hi, can you comment on the two purge valves below the water heater— do I purge from there? Open them? Keep them closed?