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Backflow Preventer Breakdown: Understanding Common Causes of Failure

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Backflow preventers are crucial components of plumbing systems, safeguarding against the potentially dangerous contamination of potable water supplies. These devices prevent water from flowing backward into the main water line, a situation that can lead to serious health risks and property damage.


However, like any mechanical device, backflow preventers can fail. Understanding the common causes of this failure is critical for homeowners and property managers to ensure the continued safety and efficiency of their water systems.


The most frequent culprits behind backflow preventer malfunctions stem from a combination of neglect, misuse, and the inevitable wear and tear of regular operation. Let's delve into some of the key reasons why these vital devices might fail:


Lack of Regular Inspection and Maintenance


This is arguably the most common cause. Many backflow preventers are installed and then forgotten about. Annual testing and inspection by a qualified professional are absolutely essential.


During these inspections, the technician checks for leaks, corrosion, debris buildup, and proper functioning of all internal components. Neglecting this crucial maintenance can lead to unnoticed problems escalating into complete failure.


Debris and Sediment Buildup


Over time, sediment, minerals, and other debris can accumulate within the backflow preventer's internal mechanisms. This buildup can impede the proper functioning of the valves and seals, leading to leaks or a complete inability to prevent backflow. Regular flushing and cleaning, often part of the annual inspection, are necessary to prevent this.


Corrosion and Deterioration


The materials used in backflow preventers are subject to corrosion, particularly in areas with hard water or aggressive water chemistry. This corrosion can weaken components, leading to leaks or internal failures. The age and material of the preventer itself are significant factors here. Older units are more susceptible to corrosion and may require replacement.


Improper Installation


Incorrect installation is another major contributor to backflow preventer failures. If the device isn't installed according to manufacturer specifications and local plumbing codes, it may not function correctly from the outset, leading to premature failure. This highlights the importance of using qualified and experienced plumbers for installation.


Freezing Temperatures


In colder climates, freezing temperatures can cause significant damage to backflow preventers. Water expanding as it freezes can crack components or damage internal seals. Proper winterization, including draining the device or installing freeze protection devices, is critical in such environments.


Excessive Water Pressure


Sustained high water pressure can put undue stress on the backflow preventer's internal components, leading to premature wear and tear. Pressure regulators can help mitigate this risk.


Conclusion


The failure of a backflow preventer can have serious consequences. By understanding the common causes of failure—neglect, debris buildup, corrosion, improper installation, freezing, and high water pressure—homeowners and property managers can take proactive steps to prevent problems.


Regular inspection, maintenance, and timely repairs are crucial for ensuring the continued protection offered by these vital safety devices. Investing in preventative maintenance is far less costly than dealing with the consequences of a backflow incident. Schedule your annual inspection today and safeguard your water supply.

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7:00AM - 4:00PM for emergencies, call (NO TXT) (562)343-1436 or txt (562)-304-3069 24 hrs a day

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AVAILABLE BY APPOINTMENT or for emergencies, call (NO TXT) (562)343-1436 or txt (562)-304-3069 24 hrs a day

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ATLAS BACKFLOW INC.

1101 East 25th Street, Signal Hill, CA 90755

Office: (562) 343-1436 

Cell: (562) 304-3069

 

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