Nashville's cross-connection rules require industrial, commercial and irrigation customers to get a backflow permit and install an assembly before the private plumbing branches off, with annual test reports filed through BSI Online. Call the number on this page to be connected with a local plumber in Nashville.
What happens when you call
You'll be connected with an independent plumber who works in Nashville and the surrounding Nash County area. Have your BSI notice ready. BSI mails it about 32 days before a test is due, and it includes a Customer Confirmation Number the tester uses when filing. The plumber will want to know where the assembly is, what it protects and whether it's leaking.
If you're installing new irrigation or opening a business, the conversation starts with the Town's backflow permit and the right assembly for the connection.
Cost factors
- Test only, or test plus repair
- New assembly and permit for a new connection
- Assembly size: residential irrigation versus a commercial service
- BSI's filing fee: $16.95 per report since March 1, 2023, per the Town
- Pipe work if the assembly has to be moved ahead of existing branches
About Nashville
The Town of Nashville buys most of its water from the City of Rocky Mount and blends it with water from town wells. Its Cross Connection Control program covers three groups: industrial, commercial and irrigation customers. Each needs a Town backflow permit and an assembly installed on the property before the private system branches. Annual test reports go through BSI Online rather than to Town Hall.
The Town received $1.5 million in a 2024 state grant round for water and wastewater fixes, and the town manager planned to recommend replacing many aging two-inch waterlines. Line work can stir up sediment, and debris lodged in a check valve is one of the most common reasons an assembly fails.
Housing ranges from Victorian and Queen Anne homes near Washington Street to 1980s-2000s subdivisions, with a median build year of 1993. Outside town limits in 27856, water may come from Nash County or a private well, and the Town program applies only to Town customers. Building and trade permits run through Nash County Planning and Inspections, with the Town issuing zoning certificates.
Before the visit
- Have the BSI notice and Customer Confirmation Number
- Uncover the assembly and clear access
- Know whether the irrigation system uses fertilizer injection
- Close the supply valve if anything is leaking
Backflow Testing questions in Nashville
Where does the test report go once the test is done?
Does an in-ground sprinkler system need its own backflow assembly?
What happens if my assembly fails its test?
My home runs on a private well. Does backflow testing apply?
More plumbing services in Nashville
Backflow Testing nearby
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