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The City of Titusville, Florida / Water Resources / Field Operations / Frequently Asked Questions / Cross-Connection & Backflow Prevention

Frequently Asked Questions - Field Operations
Cross-Connection & Backflow Prevention

Q: What do you mean by "backflow"?

A: Normally, water flows from Titusville's water production facility to your home or business. When water flows in reverse, from your home or business into the water system that is backflow. So essentially, backflow is the undesirable reversal flow of a substance through a cross- connection and into the piping of a water system. The two types of backflow are backpressure backflow and backsiphonage.


For more information, contact  or call (321) 383-5662.


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Q: What is back siphonage?

A: When there is a sudden reduction in the water pressure within the water distribution system, such as during a main break or firefighting, water flow could be reversed. Back siphonage occurs when the reduction in water pressure creates a vacuum or suction effect enabling a contaminant to be drawn into the drinking water distribution system.


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Q: What is back pressure?

A: Back pressure is created when a non-drinking water system is connected into the drinking water system and its pressure exceeds that of the drinking (potable) water system. The pressure from this outside system could force the drinking water to reverse its normal flow, which would allow a contaminant into the drinking water system.


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Q: How can backflow be prevented?

A: 

There are six basic devises that can be used to prevent backflow:

  1. Air Gap
  2. Double Check Valves with atmospheric vent
  3. Double Check Valves
  4. Residential Dual Check Valves
  5. Reduced Pressure Principal Assembly
  6. Vacuum Breaker Assembly

Which device to be used depends upon the degree of hazard the type of service/property represents to the drinking water system. Determination as to what device is required is made by the Water Resources Department.



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Q: What is a backflow prevention assembly?

A: A backflow prevention assembly is an approved, testable device that uses valves in different configurations to prevent polluted or contaminated water from reversing direction and flowing backward.


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Q: My property is served with reclaimed water. Do I need backflow prevention?

A: Yes. Any property served with reclaimed water must have a backflow prevention assembly on all potable (drinking) water connections, including fire services.


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Q: Who is responsible for testing and maintaining backflow assemblies?

A: 

The City of Titusville Water Resources Field Operations Division  is responsible for testing and maintaining backflow assemblies.



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Q: What is a cross- connection?

A: A cross-connection is a temporary or permanent connection between the public water system (such as Titusville's drinking water system) and another system or source (such as a consumer's irrigation system.


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