American Backflow Prevention       Association

What is Backflow?

Water distribution systems are designed with the intention of the water flowing in a certain direction-- from the distribution system to the consumer. However, hydraulic conditions within the system may deviate from the "normal" conditions, causing water to flow in the opposite direction. Therefore, it is possible (and common) for the water to flow in the opposite direction in unprotected systems. This is called backflow.

What is a Cross-Connection?

A cross-connection is an unprotected actual or potential connection between a potable water system used to supply water for drinking purposes and any source or system containing unapproved water or a substance that is not or cannot be approved as safe, wholesome, and potable. By-pass arrangements, jumper connections, removable sections, swivel or changeover devices, or other devices through which backflow could occur, shall be considered to be cross-connections.

What is Back Siphonage?

Back-siphonage is caused by mainline piping failures or drafting due to high demands. For example, it is a condition that can occur when the drinking water system pressure drops below that of the fire protection system, drawing the fire protection system water back into the drinking water system.

Who belongs to the American Backflow Prevention Association?

Membership is open to anyone with an interest in cross-connection control and maintaining water quality standards. ABPA is for the professional who seeks continuing knowledge and up-to-date information in this constantly changing field. The ABPA is composed of experts in cross-connection control and those just entering this dynamic field. All levels of professionals can belong to and benefit from the ABPA: From legislators who write the laws, to the federal, state and local authorities who enforce the laws; from educators who provide training, to the plumbing and water works personnel who carry this training into the field; from engineers and architects who design the systems, to the manufacturers who produce the equipment used in the systems.

What can the American Backflow Prevention Association do for me?

Besides the obvious benefits of meeting other professionals with common interests, as a Member you'll receive:

• Education - local seminars and training; extensive library of materials available through national office.
• ABPA NEWS, the only membership publication devoted exclusively to cross-connection control.
• Reduced registration rates for conferences, training programs and seminars.
• Technical Assistance with cross-connection control programs.
• Membership in regional, state, and local chapters.
• An opportunity to serve on, or benefit from, national committees that are working to solve problems and address important cross-connection control issues.
• Full voting privileges and an opportunity to serve as an association leader, gaining national recognition for your work in the field of cross-connection control.