Backflow prevention devices are a key component of your home’s plumbing system. These systems are designed to prevent contaminants from entering your potable water supply, causing serious illness and even death.
Backflow occurs when contaminated wastewater from your property flows backward into the water you use to drink or shower with, or through your pipes and plumbing system. The best way to protect your home and your family from backflow is by having a professional plumber install a culvert backflow preventer on your main line of water.
Culvert Backflow Preventer Installation and Maintenance
Most cities, towns, and governmental bodies require residential backflow prevention systems to be installed in places where there is a potential cross-connection between your plumbing system and the city’s water. These are typically schools, medical clinics, and residential properties.
In addition, many communities also have backflow prevention regulations that require these devices be tested and maintained by a professional plumber to ensure they are working properly.
Sewer Check Valve
The most common type of backflow preventer is the sewer check valve, which is usually located near your home’s water meter. It’s a simple device that opens and closes automatically to help prevent backflow.
These valves have to be checked annually by a plumber, ideally the one who installed them. Failures to check them regularly are often the result of debris building up inside the device, which can make it difficult for it to open and close correctly.
If your culvert backflow preventer isn’t working properly, it may be necessary to replace the valve itself. A plumber will be able to remove the old valve and install a new one that’s more compatible with your system.
Air Gap
An air gap is a clear vertical space between your sink and the flood level of the pipe it connects to. This helps to prevent backflow by preventing the incoming water from flowing through the air gap and into your sink or tap.
You can install an air gap yourself, but it’s a good idea to work with a licensed plumber who understands the correct installation and testing requirements of each model.
Specialized Backflow Prevention Devices
There are several different kinds of backflow prevention devices, and they all have their own unique benefits. A licensed plumber can help you determine which one will suit your needs and budget the best.
A specialized backflow prevention device is often more advanced than a traditional sewer check valve, and it can be used to control flooding from stormwater lines. This type of device is usually installed near your home’s water meter and should be turned on manually after you notice the pipes beginning to back up or when you suspect that they could.