Frequently Asked Questions
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What is a backflow device?
A BFD (Backflow Prevention Device) is a valve that is installed on the water line, and prevents backflow by creating a barrier.
What is backflow?
It is when the flow of water in the water line reverses – which can happen for a variety of reasons – and carries contaminants back into the drinking water supply, creating water that is unsafe to drink.
Why do I have to have a backflow prevention device?
The short answer: to help protect the public water supply.
The Federal Safe Drinking Water Act is the authority that applies to each public water supply in the USA, and backflow prevention is an important aspect of the requirements that insure its success.
Why do I have to have it tested annually?
To make sure it is working!
Backflow prevention devices are an assembly of moving parts that react and respond to the water flow. High water pressure, or debris carried by the water through the valve, sometimes damages these components, and render them unable to “Hold” water pressure. At annual testing, if any of these components are found to be malfunctioning, they must be repaired.
What is a cross-connection?
Cross-connections are the spots where “good” drinking water is connected to “bad” non-potable water: some examples are sewerage systems, cooling systems, food processing, farming operations, lawn irrigation systems, medical facilities, chemical processing, etc.