Slow or Gurgling Drains Across Multiple Points
When several drains across different areas or floors begin to empty slowly at the same time, it is usually a sign that the issue lies deeper within the drainage system rather than in a single fixture. Gurgling sounds often indicate trapped air caused by a partial obstruction in the pipe network. In a commercial or high-rise building, this can point to a main-line blockage that needs professional inspection and cleaning.

