The city of Carrollton, Texas requires annual backflow testing of all backflow preventers, backflow devices and backflow valves, as part of the Carrollton Backflow Prevention Program as required by the state of Texas and federal law.  This program is maintained in order to protects the water distribution system and to guarantee that potable water will

Backflow testing is required each year to make sure your back flow devices are working properly.  Backflow, as many of you know, is the situation where there is a sudden drop in water pressure from the city water supply to your home, causing contaminated water to flow backwards into the water supply.  To prevent that

What is a backflow prevention device? To answer that question we must first understand the phenomenon known as backflow.  Backflow is the reversal of flow within a water supply.  It is generally caused by either back-pressure or back-siphonage.  The most common situation is the drastic decrease in water pressure from main water supply to a