Backflow Prevention Ordinance

Backflow Prevention Recommendation

Cross Connection/Backflow Survey Sheet

Backflow Preventer Report Form


The water supply to your home is normally under pressure, but situations can occur causing this pressure to drop. These low pressure situations can cause water to flow backwards. This reversal of water flow is known as backflow. A water main break, repair of a water main, or water use for fire fighting can result in enough lost water pressure to cause backflow.

Backflow can be a health hazard for your family. When backflow occurs the water drawn back into  your main water supply may be contaminated. This contaminated water remains in the water lines until it is drained from another fixture in your home. A serious healkth hazard could result when this contaminated water is used for dringing, cooking, or bathing. To prevent this from occurring the City of Celina requires annual testing by a certified backflow tester for testable backflow devices.

Certified Backflow Testers

Many plumbing companies have a certified backflow tester on staff. We recommend checking the yellow pages under plumbing or backflow tests to find a certified backflow tester in your area. You may also view a list of certified backflow testers on the Ohio Department of Commerce website.

Backflow Scenarios

  • Soapy water or other cleaning compounds are back siphoned into your water supply via a faucet or hose submerged in a bucket or laundry basin.
  • Fertilizers/pesticides are back siphoned into your water supply via a garden hose attached to a fertilizer/pesticide sprayer
  • Chemical/pesticides/animal feces are drawn into your supply from a lawn irrigation system.


How To Prevent Backflow


  • Never submerge hoses in buckets, pools, spas, tubs or sinks. They may contain harmful cleansers or dangerous bacteria.
  • Always keep the end of the hose away from possible contaminants.
  • Do not use any spray or cleaning attachments on your hose without a backflow prevention device on the hose. This includes pesticide applicators, portable pressure washers, drain openers and radiator flush kits. All of these devices utilize chemicals, detergents and waste water which are toxic and can be fatal if ingested.