Backflow is the undesirable reversal of flow in a drinking water distribution system. Water that is always under pressure can only flow in one direction.

How can water flow in reverse? Water will always flow towards the point of lowest pressure. If a water main were to break or if the fire department opened several fire hydrants to help fight a fire, the pressure in the main water line could drop. The water demand could cause a reversal in flow and the possibility of contamination needs to be recognized so it can be eliminated.

A garden hose submerged in a hot tub, swimming pool, car radiator, or attached to an insect/fertilizer sprayer could siphon the liquid back into the water main. Backflow prevention assemblies are designed to protect the public water system from these types of concerns.  

Backflow Registration

Backflow technicians who have not previously registered with the City, should complete a registration form. Technicians who have registered in the past, should contact the Public Works Department for a renewal letter, instead of completing the registration form. If you are paying by credit card, payment can be made via email

Commercial Facilities

Commercial facilities are required to have all backflow devices tested annually by a licensed backflow technician that is currently registered with the City of Bedford. Please contact Public Works at 817-952-2200 for the complete list of registered technicians.

Test Report Books

Backflow technicians are required to purchase test report books from the Public Works Department. Test report books are printed in triplicate (original, pink and yellow copies) and cost $10 for a book of 25 forms. 

Irrigation Systems

All irrigation systems installed are required to have a backflow device installed. Currently, only commercial facilities are required to have backflow devices on irrigation systems tested annually. However, the City's program will be revised and updated based on any new forthcoming State requirements.