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Water release from boiler
I have a Burham ESC boiler that was installed over a year ago. I am occasionaly getting water being discharged by the relief valve after the pump shuts off, though not every cycle. The pressure when the pump is operating is a constant 20psi. The installer checked the air cushion tank by "knocking" on it and said it was okay. He suggested adjusting the pressure on the water feed regulator.
I have adjusted the water feed 1.5 turns counterclockwise and I am getting less water discharge. Is there a minimum pressure from the auto-feed that I need, and how do I measure the pressure so I do not exceed the minimum?