01
Room map
Place every affected drain on the floor plan before linking them.
Sheet 29 / Diagnostic set
Lay several drains on one time and level grid
Map rooms, levels, lowest fixtures, use order, sounds, and wastewater return.
When multiple drains change, the useful drawing shows room, floor, lowest fixture, order of use, gurgling, rise, and any wastewater return. It does not assign a public or private cause.
Call about the symptom877-702-1610
INPUTOBSERVETRACEVERIFYOUTPUTRECORD
S-01Symptom named
S-02Access mapped
S-03Provider unverified
S-04Scope pending
Identify the symptom
Five callouts for this drawing
Each note describes an action, not a diagnosis. Leave unsupported branches open.
02
Lowest point
Identify the first low fixture that rises, gurgles, or drains slowly.
03
Use order
Write which shower, sink, toilet, or appliance ran before each change.
04
Return water
Leave the area and end testing when wastewater enters a fixture or floor.
05
Public context
Attach current Town information without calling the public sewer the cause.
Trace the source
Follow evidence through the branch
Stop contributing water if wastewater appears. Ask the provider what evidence separates a fixture branch, building drain, private connection, or Town sewer question.
Repair route and access map
Define the boundary before authorization
File the inspected route, access point, camera or measurement evidence, finding, completed scope, fixtures retested, and unresolved ownership or public-system coordination.