A note on this example
This is a hypothetical, illustrative case. The building, units and details are invented to show how a manager might think about a pattern of complaints. They are not drawn from any real property, resident or project, and a real building may behave differently.
Imagine a mid-rise where residents of the second and fourth floor units on the same line report a sour, sewer-like smell in the bathroom. The third floor unit between them reports nothing, which at first suggests the problem is not shared. Each unit is inspected separately, and each inspection finds nothing obviously wrong.
The detail that matters is the alignment. All three units sit one above another and share a vertical chase behind the bathroom walls. A smell can enter a chase at one level, travel along it and emerge through gaps around pipes and fixtures at another. The unit in the middle may have tighter sealing, or simply a different pressure, so it notices nothing.
When complaints from several floors line up on the same vertical line, treating each unit as a separate case tends to waste time. The better step is to look at the chase itself, including the plumbing and any penetrations, and to consider whether a vacant unit on the line has dry traps.
How it might unfold
Illustrative example. Not a real job or customer.
Staff map the complaints onto a floor plan and see that they sit on one vertical line. A vacant unit at the bottom of that line has traps that have dried out.
- Staff refill the traps in the vacant unit and in each affected bathroom.
- They check the sealing around pipe penetrations and fixtures in the affected units.
- They ask a qualified plumber to look at the vent and drain lines on that stack.
- They recheck every unit on the line a few days later.
In this hypothetical outcome, the smell fades after the dry traps are addressed and the penetrations sealed. A recheck confirms that the pattern has cleared.
What the example highlights
- Pattern
- Complaints aligned on one vertical line
- Likely route
- Shared chase and pipe penetrations
- First checks
- Dry traps, especially in vacant units
- Follow-up
- Recheck all units on the line
A method to borrow
Map the complaints
Mark each reporting unit on a floor plan or building elevation.
Look for alignment
A vertical line of units suggests a shared chase.
Check traps
Refill traps in every unit on the line, and especially in vacant ones.
Seal and verify
Seal gaps around penetrations and recheck all units.
Common questions
Is this case based on a real building?
No. It is hypothetical and illustrative, written only to show how complaints can be mapped.
General information for Centennial, not a quote or professional advice. In an emergency, call 911.