I'm sure this question has been answered a million times, so I apologize in advance, but I tried to find the answer. Also apologize for the undoubtedly incorrect terminology.
I need to bleed one zone of my heat system. At the return, each zone has a vertical pipe with, from bottom to top, a shutoff valve, a valve with a water spigot and the pressure release (?) on the top.
What is the order for turning the valves?
I've watched the guy do it before, but can't remember the procedure.
Thanks!!