North Seattle plumbing / guide 29
When several fixtures slow, gurgle, or rise, the order and elevation matter. The pattern still cannot decide whether the problem sits in a branch, building drain, side sewer, shared pipe, or public main.
Call a plumber877-702-1610
Heavy rain can affect public and private drainage, but household wastewater symptoms require their own time line. Attach any current SPU notice without merging it into a diagnosis.
List each toilet, sink, tub, shower, appliance, and floor drain by level. Mark the lowest return, first change, and exact order of fixture use.
Stop contributing water when wastewater appears. Keep people away, avoid electrical risk, and coordinate with the property representative when other units may be affected.
What to observe now
Keep the notes factual. A visible clue can direct an inspection without proving what is hidden.
Name all changed drains and preserve unaffected comparisons on the same map.
Identify where rise, gurgling, or delayed flow first appeared.
Write which fixture or appliance operated immediately before each change.
Record neighbor or tenant reports separately and without assigning blame.
Use the current SPU channel for street, flooding, overflow, or main concerns.
Responsibility
Closeout record
Save the inspected route, access point, camera or measurement evidence, supported finding, completed work, fixtures retested, and remaining public or shared question.
Current primary sources
Public procedures and status can change. Use the source that owns the decision.