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Water level in Sight Glass -Steam Boiler
Recently i have noticed that when the boiler starts, after few minutes, the water level in the sight glass goes very low that i cannot see any water. At that time my low pressure guage shows me a pressure of a little above 1 PSI. After few minutes of running, pressure comes down and the water level comes back up.
This goes on for few minutes until the water level becomes stable at the bottom of the sight glass where i can barely see water in there. Remember that before the boiler started running, water was at the normal water line.
Could you please tell me whats going on here?
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