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What is a Backflow Preventer?

A backflow preventer is a device that's installed on the water supply line to your home. It prevents water from flowing backward into the water system and protects against contamination of drinking water. Your local health authority may require you to install one if you have a private well or another type of non-municipal source for your household's drinking water supply.

Backflow preventers are designed to stop contaminants like bacteria, chemicals, and sediment from entering drinking water sources through pipes connected between two different pressure systems (such as when there is no valve between them). They work by using an air gap between two levels--the top level being where we drink our clean tap water; At the same time, underneath it sits our contaminated ground/well/spring, etc., which uses gravity instead of pumps or electricity, so it doesn't need any power source whatsoever!

Why is backflow prevention important?

To safeguard public water supplies, stop water supply tainting, and stop harm to your home's plumbing system. Backflow prevention devices are required by law because they can prevent serious damage to both private and municipal water systems.

Common reasons for backflow

A backflow preventer is a device that prevents water from flowing backward through the plumbing system. This can occur if your water system is separate from the city's water supply, such as if you have a well or cistern of your own. Backflow can also occur if there's something wrong with one of your valves, filters, or drains.


How does the water get into the wrong system?

Backflow can occur when there is a change in pressure.

The most common cause of backflow is when the water supply for one system is connected to another system. For example, if you have a well that supplies your property and there's an irrigation system on your property that uses municipal water from the city or county, there could be some backflow issues. This would also apply if you had two different sources of municipal water coming into one building (such as an apartment complex). This occurs because, depending on how far apart these systems are from their respective sources, they will experience pressures that range from high to low. This difference causes potential problems because it allows undesirable substances like minerals or chemicals into drinking water lines which can contaminate them and make them unsafe for human consumption.

What are the benefits of using a backflow preventer?

  • Prevents contamination of the potable water supply.


  • Prevents contamination of your property.


  • Prevents damage to your property.


  • Prevents contamination of the environment and damage to it.

You need to use a backup device so that you never put your property at risk

You need to use a backup device so that you never put your property at risk. If you don't install one and something goes wrong, the city will fine you and shut off your water until repairs are made. Additionally, your family could get very sick from drinking contaminated water if it contains bacteria or leads in the drinking water system. Installing a backflow preventer is a need if you want to shield your family and yourself from issues of this nature


If you have any questions about backflow prevention, Backflow Pros is here to help! Our experts will be happy to answer any questions and make sure that you get the right device for your home or business.

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