Backflow, answered

Backflow is the undesired reversal of water flow against its normal direction, which can cause contaminants to enter the drinking water supply. Backflow prevention devices — or assemblies — protect potable drinking water from contaminants and pollutants. There are two causes of backflow: back-pressure and back-siphonage.

Because it's currently receiving non-potable water from another source — for example, an irrigation system or untreated well water. Homes and buildings with more than one water source are required to keep that water separated from the drinking supply.

Backflow assemblies are typically found in commercial and industrial buildings, buildings three stories or taller, multi-family residences, and homes with more than one source of water (such as untreated well water). These assemblies require annual testing to keep the community water system protected.

The property owner is responsible for having their backflow assembly tested annually by a certified tester. If you've received a notice from the city that your test is due, that's your cue to schedule — give us a call and we'll handle it.

If your assembly fails, we thoroughly clean it and re-test. If cleaning doesn't bring it into compliance, we'll notify you of the necessary repairs and only proceed with your approval. After a repair we re-test for certification at no additional cost.

Our annual backflow test is a flat $85 for assemblies 2" and under located within Tucson city limits — no hidden fees, and you don't have to call just to get a price. That covers the certified test, the paperwork submitted to the city, and a reminder when your next test is due. Larger assemblies and properties outside Tucson are quoted by phone at 520-201-8646.