Domain surface · sewer
Sewer
Building drain, lateral, and main-line work beyond an ordinary fixture clog. Camera footage and distance marks are first-class Chain B notes. Ops remain design / stub.
All trades · HVAC · Plumbing · Electrical · Cross-trades
How this domain sits on the OS
Heavy rainfall and flash-flood features in the weather model change sewer/backup mix. Fixture-only stoppages stay on plumbing. When a backup floods a finished space, restoration and electrical drying belong on cross-trades. A clear that does not record what the camera saw becomes a repeat call the callback classifier must not auto-penalize.
Common call types
Main-line backup
Which fixtures, where it first showed, city main or not.
Camera
Distance marks. No invented footage.
Cable / jet
Machine follows pipe size and debris.
Spot repair estimate
Depth, surface, and whether excavation is the next trade.