Licensed by the Texas Commission on Environmental Quality.

Member of American Backflow Prevention Association

Member of American Water Works Association

Did you receive a notice from your water department that there is a test due on your assembly?

No problem! Just give us a call....940-644-2807.... We will take care of the details.

You can also complete our APPOINTMENT page or fax the report over to us at 940-644-1886. If faxing, be sure to include your contact information.

We will test and deliver the completed report to your water department.

If a repair is needed, we will contact you with a repair estimate. With your permission, we will repair and retest your assembly.

What is a Cross-Connection?

A cross-connection is physical connection between a public water system and either another supply of unknown or questionable quality, any source which may contain contaminating or polluting substances, or any source of water treated to a lesser degree in the treatment process.

There are many definitions for cross-connection. Most of them are very similar to this one. Some also include the language referring to potential connections as also being a cross-connection.

Many water using fixtures have built in backflow prevention features, however there are many fixtures that do not have protective features such as various hose connection devices, swimming pools/spas, and boilers. There are numerous commercial/industrial water uses that do not have backflow prevention features.

Cross connections can be controlled by either eliminating the cross connection or by protecting it with a proper backflow prevention assembly.

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. Backflow is the reverse flow of contaminated water or other substances from a user's private water system back into the public drinking water system.

To put it simply, Backflow is water going in the opposite direction from its intended direction of flow. Backflow incidents can seriously affect the quality and safety of the drinking water.

There are two types of Backflow:

1. Backpressure - A pressure higher than the supply pressure caused by a pump, elevated tank, boiler, air, steam or any other means that would cause Backflow.

Backpressure could be thought of as a type of Backflow that has to be created. Something has to be added to the system to cause Backpressure. For example, a pump added to a water piping system could build enough pressure to cause Backflow due to Backpressure. Compare that to a conventional lawn sprinkler system. On a conventional lawn sprinklker system there are no pumps, no elevated tanks; no added heat from a boiler or steam. In short, nothing that would cause the pressure in the piping system to rise higher than the supply pressure.

However, Backflow is possible on a conventional lawn sprinkler system. If the water supply pressure should drop then the water in the lawn sprinkler piping system would Backflow toward the reduced pressure.

2. Backsiphonage - Reduced or negative pressure in the supply piping.

Backsiphonage is backflow that occurs when the supply pressure becomes reduced. Many people think of Backsiphonage as Backflow that is a result of the supply pressure falling to a point below atmospheric pressure. However, Backsiphonage can occur in a system still under positive pressure.

If the supply lines are closed, (faucets, valves, water connections, then atmospheric pressure has no effect on the water supply. Should the water supply pressure drop then the water in the supply system would Backflow toward the reduced pressure. This occurs without the use of pumps, elevated tanks or any other means that creates Backpressure.

Having backflow assembies installed in proper locations prevent unsafe water from being pulled back in to the drinking water system.

Types of assemblies include Double Check Valves, Pressure Vacuum Breakers and Reduced Pressure Principals.

Double Check Valve

Pressure Vacuum Breaker

Reduced Pressure Principal