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Sanitary equipment is an important feature of a building. It is present at practically all floors. Inevitably, it can generate noise at all floors, and even propagate noise and vibrations throughout the building.


Taps may generate vibrations in the ducting system due to the turbulences inside; they will depend on the constitution of the tap as well as on the operating conditions (i.e., available pressure and flow rate).

The sound power level generated by a tap in a room can be tested under laboratory conditions according to standard ISO 3822 [15]. Manufacturers are supposed to be able to provide the acoustician with such data.


Pumps are typically used to increase the available pressure at the tap. While the noise levels generated by pumps are not that high (unless no proper maintenance has been carried out, that is!), they can generate a significant amount of vibration that will ultimately be radiated by the attached piping and the structures of the building unless proper precautions are taken. Those precautions will typically include:

  • • A thick (25 cm minimum) lower concrete floor in the plant room housing the pumps
  • • An inertia mass on resilient pads to rest the pump on
  • • Flexible (e.g., Dilatoflex) links to the piping
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