Map the responsibility boundary
Map the responsibility boundary
- Identify the connected system and the exact point where it meets potable water.
- Record existing device type, make, model, size, location, test tag and service history.
- Do not bypass, remove, cap, or alter a device because it drips or reduces flow.
- Ask BWSC or the responsible inspector which submission, tester and schedule apply.
Why ownership matters
Why ownership matters
A backflow preventer on the drinking-water side serves a different purpose from a backwater valve on a drain. Irrigation, boilers, commercial equipment and other connected systems may create cross-connection questions. Device selection, approval and testing depend on the specific hazard and current rules.
Questions for the correct owner
Questions for the correct owner
- What contamination pathway is the device intended to prevent?
- Is the assembly approved and accessible for required testing and service?
- Who owns notification, shutdown, repair, test submission and failed-test follow-up?
- Does the project change an irrigation, mechanical, fire, process or domestic-water connection?
Next notices
Continue with the related decision
Independent connection
Call for plumbing help
Describe the observable condition first. Confirm who answered, Boston 02108 coverage, the responsible licensee, availability, price, permit duty, and terms before authorizing work.