Utilities
Backflow Preventer Inspection

A backflow prevention device is commonly used in irrigation and fire sprinkler systems. The purpose of the device is to protect the public water supply from contamination.

The Ohio Plumbing Code requires that each backflow prevention device be tested annually. A Certified Backflow Tester must test each backflow prevention device. Many plumbing and irrigation companies have a Certified Backflow Tester on staff.

Annually, we notify property owners of the due date for the year's backflow testing. Letters are typically sent in early April, and the due date is typically in early June. Failure to comply with this requirement will result in water being shut off until testing has been completed and submitted to the Utility Billing office.

New in 2026, forms will be submitted electronically through Backflow Solutions, Inc (BSI). Backflow testers can visit the BSI support page by clicking this link.

The service fee for BSI is $10.95 for the customer which will be billed by the backflow tester. 

With any questions or concerns, please call the Utility Billing office at 937-848-4638, or email tessa@bellbrook.gov. You can also reach out directly to BSI:

Service Provider Support

(800) 414-4990 | bsionline@backflow.com

Water Customer Support

(888) 966-6050 | support@backflow.com