I live in the bottom floor of a 5 story house, and we just got a new
main sewer drain pipe (a vertical pipe for bringing waste water out of
the house). That s very nice but somebody on the upper floors uses
water, then I get a lot of noise in my appartment. The pipe is
vertical, but it has a kink in my appartment, and I think this kink is
the reason for the noise. Sometimes the water falls down several
stories before hitting the kink.
I mailed the consulting engineer about it and he said that it is
normal for new drain pipes to be noisy, because they are clean on the
inside. Is that true? Is there anything the plumbers could have done
to reduce the noise?
I write here, because I don't know whether I should be pationt or
complain about the work. If I want complain it is a good time to do it
now, because the plumbers have not been paid yet,
Thanks in advance
A kink or offset can indeed produce a lot of noise with a fall
of 5 stories, especially if it is a 90 deg offset rather than 45 deg.
More important though is the pipe material. Cast iron stacks
produce far less noise than PVC or ABS plastic piping. What was used?
But it may not be the plumbers' fault. Did they comply with the
job specs? If so, the consulting engineer may be to blame.
Rather than redesign the piping, it may be practical to
apply soundproofing material, such as:
Will the noise lessen as the pipes get used? HaHaHaHa!
Thank you for the answer.
The pipes are made from metal, and the kink is only 45 degrees, but
the metal appears to be significantly thinner than the metal in the
pipe I had before. If I hit them with a metal object they sound a bit
like a bell. The previous pipe was also better attached to the wall,
so perhaps a part of the problem is lack of damping.
Anyway, I am not sure if there were detailed specs, and it is further
complicated by the fact that the house is owned by a cooperative
society, so if I want the pipes to be replaced I need to convince
other people complain on my behalf, and that may not be easy.
I will look into the sound proofing materials and see what I can find.
For the sake of google: They entrepreneur ended up building a wooden
box around the pipe. I talked to several people and in my country
boxes seem to the the standard approach to sound isolating this kind
sewer pipes. All the sound has gone, so I am happy.
Regarding sound isolating lead tape I was told that this tape could
only dampen the high frequency noise. So the deeper tones would
still be hearable through the tape. I haven't tested if this is true.
Thanks again for all the advice.
*I would complain about the work now before the plumber gets paid. He is
more likely to see that the customers are satisfied now than later. As
others mentioned it may not be the plumber's fault, but let him tell you
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