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Residential backflows will be maintained by us

Toho Water Authority has updated its cross-connection control program. Residential customers are no longer responsible for testing and maintaining their backflow assemblies. Toho Water Authority (Toho) will test and maintain all residential backflows at no extra cost to customers.


What is a backflow assembly?

A backflow assembly prevents water from flowing back into the water distribution system once it has left it. (See images on the right)


Where is the backflow assembly typically located on my property?
The backflow assembly is usually located adjacent to the water meter box. They are also located on the side of the house about 12-36" above the ground. (See images on the right)


When will these backflow assemblies be tested?
Following the guidelines set by the Florida Department of Environmental Protection (FDEP) your residential backflow assembly will be tested once every two years. A contractor will perform the tests on behalf of Toho. 


Does Toho also maintain them and replace them?
Yes, a contractor on Toho's behalf will provide maintenance and replace the backflow assembly if necessary.


Will I be notified?
Upon arrival to a customer's residence, the contractor will inform the customer of the test and/or repairs to be conducted on the backflow. If the customer is away, the contractor will leave a door hanger stating that the backflow was tested, repaired and/or if a follow-up visit is required.


At what time will these backflow inspections take place?
The contractor working on Toho's behalf will be conducting backflow tests and repairs Monday-Friday from 8 a.m. to 4 p.m. The contractor’s vehicle will have a Toho Water Authority logo on it


Are there any extra costs if backflow parts or replacement is needed?
Customers will not incur any additional costs.


What is the customer's responsibility?
We request that the area around the backflow be clear of any foliage, rocks, sprinklers or other items to allow us to test the backflow or perform any necessary repairs.


What about commercial customers?
Commercial customers are still required to test and maintain their backflows on an annual basis and will be notified by Toho Water Authority when testing needs to be completed.


If an issue occurs with my residential backflow, who do I contact?
Please email our Backflow Department at