What is Backflow?
Backflow can be described as “a reversal of the normal direction of flow within a piping system or as “the flow of water or other liquids, mixtures or substances into the distribution pipes of a potable water supply from any source other than the intended source of the potable water supply.
The potential for a backflow condition occurring in a water system is all too likely in many of our homes, factories, and public buildings. The existence of improper plumbing connections presents cross-connections that may, under backflow conditions, permit the water to flow the wrong way within the piping.
The probability of backflow at any given outlet may be minimal. But given a large number of service connections, the multiple cross-connections at each service connection, and the potential for cross-connections to be created, the probability becomes very significant and must be dealt with positively.
What is Cross-Connection?
A cross-connection can be described as “any arrangement whereby backflow can occur” or as “any arrangement of pipes, fittings, fixtures, or devices that connects a non-potable water system to a potable water system.” It is the point at which a water-using fixture is connected to the water user’s potable water system.
An unprotected cross-connection provides the path or route through which backflow can occur.
It can be:
- Permanent or temporary
- Actual or potential
- Direct (subject to backpressure & back siphonage) such as a boiler or indirect (subject to back-siphonage only) such as a toilet tank fill valve
Some of the more common examples are:
- boiler make-up lines
- chiller make-up lines
- fire protection systems
- spray hoses
- suction tees or aspirators
- tanks or vats with a submerged inlet
- X-ray & photo developing equipment
- irrigation systems
- commercial grade dishwashers
- hand-held lawn sprayers
- pressure washers
- commercial grade garbage disposals or grinders
- soap, sanitizer, or wax induction systems
- a janitor’s sink with a hose attached
- hose bibs with a hose attached
- toilet tanks
Please report any suspected cross-connections to the Village of East Canton Service Department at
Completed surveys can be submitted to:
The Village of East Canton Water Department
130 Cedar St
East Canton, OH 44730