Backflow happens in places where different water systems connect. Without a prevention method for stopping it, water can go where it isn’t supposed to, leading to contamination and potential health problems for the people who drink it. Luckily, irrigation installations prevent this issue from happening. Here are some common backflow questions and answers. 

Frequently Asked Backflow Questions 

What is backflow?

Backflow is the flow of a liquid as it moves in an unintended direction. The movement is caused by reduced water pressure, either in the pipe itself or in a connecting line. Although backflow is mainly used in reference to water, it could refer to other liquids and substances. 

What causes backflow?

Two types of situations lead to backflow. Backpressure refers to when the wrong water source has higher pressure, such as your home’s plumbing versus the local water supply. If your water pressure is too high, it could result in used wastewater flowing into the municipal supply. 

The other type of backflow, back-siphonage, takes place when there are instances of negative pressure, which can also be seen as a suction movement. When fire hydrants are used, or a water main leaks, the loss of pressure causes water to flow the wrong way. 

How can a backflow preventer help?

Backflow preventers are irrigation installations designed to keep water flowing in the right direction. With one installed in your pipe, any wastewater passing through will be stopped before it flows back into the local water supply. This can prevent both backpressure and back-siphonage. 

Does my municipality require a backflow preventer?

If you have a well or irrigation system, regardless of your local regulations, you should have a backflow preventer to reduce the risk of contamination. A water meter is a good place for this, along with anywhere else wastewater is cross-connected with incoming water. However, some municipalities do require preventers to be tested when they’re installed to ensure they work and do not contribute to contaminating the water. If you aren’t sure that you have a preventer installed or if it works properly, consult an irrigation expert to find out. 
 

If you need a backflow prevention solution, turn to the irrigation installation and repair experts at Emerald Coast Landscaping in Orange Beach, AL. They have experience with projects of all sizes, for both residential and commercial clients. Give them a call at (251) 269-8128, or visit them online for more information.