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Vibration after pipe change
Hey there everybody !!! Got a quick question hopefully someone get shed some light on this.
Have a hot water heating system that runs throughout my house with cast iron radiators . Runs on black pipe and unfortunately near one of the radiators the pipe started leaking.Called a plumber to have it replaced and he did so with copper fittings. Emptied the system checked the Mueller everything worked well bled the radiators A1. That same night i started hearing the pipes vibrating when the system would run. Fairly loud. Called the plumber to have a look and said that the metal pipes running through out the wall must have moved a bit when they removed the old broken pipe and replaced it with the copper . They looked around and noticed the pipe touching on some wood beams when the moved it off the wood the noise would stop but not at 100% . They then went to the circulating pump. It is an oil less pump s25, with three speeds . When they turned it to the second and third speed it would make more vibrating noise. They asked me to have the pump checked by my service provider because they didn't think it was normal for the pump to make such loud noise. Non the less they also felt the pipe vibrating behind one of my walls. The plumber said if its not the motor they recommend removing some paneling (wall) to see if the pipe is touching on the wood frame hence the noise. My main question is could the copper pipe be the reason its making the noise .I called in the service for the pump and they told me the pump is good. could it be just the pipe moved and is touching somewhere or the copper pipe is to blame ?? any help??