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Banging - steam boiler 1-pipe system
First, I really appreciated all the help that you all have given me in the last 2 years with my boiler – it has made a difference. I need some support regarding an issue with some banging. I have a riser that is in exterior wall that goes to the second floor, which connects to 2 rads – one in a bathroom and one in a bedroom. The issue is there is banging in the floor when the steam 1st comes up the riser; I think the pipe is hitting the floor but not sure. I put in adjustable vents and slowed the steam down thinking that might help – it did not make a huge difference. I then closed the vent to the bedroom rad – still noise. I then switched the process and closed the vent of the bathroom – perfect no banging just silence. Thinking the pipe from the riser to the bathroom rad might be sagging, I pitched the rad at the valve side thinking some tension might help – it did not. Any thoughts? I cannot get to the piping without taking up the flooring or going thru the ceiling on the 1st floor.
New owner of 1 Pipe Steam Boiler - learning all I can- no real steam pro in S.W. Michigan - if you know of 1 -let me know.