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<p>Backflow prevention is essential for protecting your home’s water supply from contamination. While calling a professional is always a wise choice, there are some DIY measures you can take to safeguard your system.</p>

<h2>Understanding Backflow</h2>
<p>Backflow occurs when the normal flow of water reverses, allowing contaminants to enter the clean water supply. This can happen due to a significant drop in water pressure, often caused by a burst pipe or heavy water usage in the area.</p>

<figure id="figure-1y2z51u8fmi9vs577"><img id="1y2z51u8fmi9vs577" src="https://cdn.durable.co/getty/0gr3smU8cpjKaEMnQumKm5M0JDiyicIwSGSC6pJc2FbgisRE9rkVbKILRvAv0b0K.jpeg" alt="water pipes" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h3>Install a Hose Bib Vacuum Breaker</h3>
<p>One of the simplest ways to prevent backflow is by installing a hose bib vacuum breaker. This device attaches to your outdoor faucets and prevents contaminated water from being siphoned back into your home’s water system.</p>

<ol>
  <li>Purchase a hose bib vacuum breaker from a hardware store.</li>
  <li>Screw it onto your outdoor faucet.</li>
  <li>Tighten the connection to ensure a secure fit.</li>
</ol>

<h3>Regularly Check for Leaks</h3>
<p>Routine maintenance is crucial in preventing backflow. Regularly inspect your plumbing system for leaks, which can lead to drops in water pressure and potential backflow incidents.</p>

<ul>
  <li>Inspect under sinks and around toilets.</li>
  <li>Check outdoor faucets for drips.</li>
  <li>Listen for unexpected sounds in pipes.</li>
</ul>

<figure id="figure-p5h0f2oflimi9vs577"><img id="p5h0f2oflimi9vs577" src="https://cdn.durable.co/getty/5gEQWo3BL8kujf5eR8uC0yWHfG7JBVtHUbtEUzWGXK6OiY6BZA1LENHWX5jlTIX9.jpeg" alt="plumbing inspection" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h3>Avoid Creating Cross-Connections</h3>
<p>Cross-connections are points where the potable water system connects with non-potable sources. Avoiding these connections is essential in preventing backflow issues.</p>

<p>Ensure that hoses are not submerged in pools or buckets, and avoid attaching hoses to devices that could contaminate the water supply, such as chemical sprayers.</p>

<h2>Test Your Backflow Prevention Devices</h2>
<p>If your home is equipped with backflow prevention devices, regular testing is necessary. While professionals should handle comprehensive inspections, you can perform some basic checks.</p>

<ul>
  <li>Visually inspect devices for signs of wear or damage.</li>
  <li>Ensure that valves are easily accessible and operable.</li>
  <li>Listen for unusual sounds when water flows through the device.</li>
</ul>

<figure id="figure-7wkkhkilsmi9vs577"><img id="7wkkhkilsmi9vs577" src="https://cdn.durable.co/getty/7hYZHV2jfJTCYwwItg4j8hNbuFKR5dRM3uWjpNyRZRbl8HnKfk6jZLFrmzw9YJfG.jpeg" alt="backflow prevention" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h3>Know When to Call the Pros</h3>
<p>While these DIY tips can help maintain your system, some situations require professional expertise. If you notice persistent water pressure issues or suspect a backflow incident, contacting a professional is crucial.</p>

<p>By understanding and implementing these DIY backflow prevention tips, you can contribute to the safety and integrity of your home’s water supply. However, never hesitate to seek professional assistance when needed to ensure your system is in optimal condition.</p>

DIY Backflow Prevention Tips: What You Can Do Before Calling the Pros

<p>Living in Southern California comes with its unique set of challenges and responsibilities, especially when it comes to maintaining a safe and reliable water supply. One crucial aspect of this is backflow testing. Backflow prevention is vital to ensure that contaminants do not enter the clean water supply, posing health risks to residents.</p>

<h2>Understanding Backflow</h2>

<p>Backflow occurs when water flows in the reverse direction, potentially introducing pollutants into the potable water supply. This can happen due to changes in pressure, such as during a water main break or when heavy water usage decreases pressure in the system. Understanding this risk is the first step in preventing it.</p>

<p>There are various types of backflow prevention devices, such as air gaps, reduced pressure zone assemblies, and double check valves. Each serves a specific purpose, and regular testing ensures they are functioning correctly.</p>

<figure id="figure-b1dxt0qoumi5lgeub"><img id="b1dxt0qoumi5lgeub" src="https://cdn.durable.co/getty/83d8BDz5iokZYsxHX7cSjiPIIj1vpP0S4nOUDXXbxcQzamNQhWKtn5kTKoYm1qNn.jpeg" alt="water testing" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>The Importance of Regular Testing</h2>

<p>Regular backflow testing is not just a recommendation; it's often a requirement. Many local ordinances in Southern California mandate annual testing to ensure public safety. This testing helps to identify potential failures in backflow prevention devices before they pose a real threat.</p>

<p>By scheduling regular tests, homeowners can avoid potential fines and ensure compliance with local regulations. More importantly, they contribute to the overall safety and health of their community.</p>

<figure id="figure-myof4s7mhdmi5lgeub"><img id="myof4s7mhdmi5lgeub" src="https://cdn.durable.co/getty/f1VPyaVSQDtEYVNDe4CZ7sSywHj55ezYyZ7NgSb2b9xgOVOeNbYwjtrCNTmsVRrT.jpeg" alt="community safety" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Health and Safety Concerns</h2>

<p>Contaminated water can lead to serious health issues, including gastrointestinal illnesses and other infections. Backflow testing is a proactive measure to protect families from these dangers. Ensuring the integrity of the water supply is crucial, especially in densely populated areas.</p>

<p>In Southern California, where droughts can affect water pressure, the risk of backflow increases. Regular testing provides peace of mind that these risks are managed effectively.</p>

<figure id="figure-nqsxxyx7q9mi5lgeub"><img id="nqsxxyx7q9mi5lgeub" src="https://cdn.durable.co/getty/fRbbUM55rDBOBTUBib96jUDtHgZoTkMrEJvM8MVSftiX0sI8ss3cUXzebiQyxrnj.jpeg" alt="family health" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Cost-Effectiveness of Backflow Testing</h2>

<p>While there is a cost associated with backflow testing, it's a small price to pay compared to the potential cost of dealing with contaminated water. Early detection of issues can prevent expensive repairs and health-related expenses down the line.</p>

<p>Moreover, many insurance policies may offer discounts for homes that adhere to regular maintenance schedules, including backflow testing.</p>

<h2>Choosing a Qualified Professional</h2>

<p>It's essential to hire a certified professional to conduct backflow testing. A qualified technician will have the necessary tools and expertise to thoroughly assess the situation and provide accurate results. They can also recommend any necessary repairs or replacements.</p>

<figure id="figure-bhkyjyfx7lmi5lgeub"><img id="bhkyjyfx7lmi5lgeub" src="https://cdn.durable.co/getty/fY9qp04ilNK6vOXEmzr6d1DWieuVFzmU24vIRo9US7LqB4sa6939SfVG5x51K7t9.jpeg" alt="technician inspection" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<p>Residents should look for licensed professionals with positive reviews to ensure they receive quality service. Regular maintenance by a trusted expert is key to safeguarding the water supply.</p>

<p>In conclusion, regular backflow testing is a critical responsibility for Southern California residents. It protects public health, ensures compliance with local laws, and can even offer financial benefits. By prioritizing this maintenance, homeowners contribute to a safer and healthier community for all.</p>

Why Regular Backflow Testing is Crucial for Southern California Residents

<h2>Understanding Backflow and Its Risks</h2>
<p>Backflow is the unwanted reversal of water flow in a plumbing system, which can lead to contaminants entering the clean water supply. This can pose significant health risks, especially in residential areas. In California, where water conservation and quality are top priorities, ensuring that backflow systems are functioning correctly is crucial.</p>

<p>Contamination from backflow can introduce harmful substances like chemicals, bacteria, and other pollutants into the water supply. This can occur due to various reasons, such as changes in water pressure or faulty plumbing systems. Regular testing is the best way to prevent these risks and ensure safe drinking water for California residents.</p>

<figure id="figure-jgya21tqqmi1b4rmn"><img id="jgya21tqqmi1b4rmn" src="https://cdn.durable.co/getty/7hYZHV2jfJTCYwwItg4j8hNbuFKR5dRM3uWjpNyRZRbl8HnKfk6jZLFrmzw9YJfG.jpeg" alt="backflow prevention" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Legal Requirements in California</h2>
<p>California has stringent regulations regarding water safety, and regular backflow testing is mandated by law. Homeowners and businesses must comply with these regulations to avoid penalties and ensure public health safety. The state requires annual testing of backflow prevention devices to certify that they are working correctly.</p>

<p>Failure to comply can lead to fines and, in severe cases, disconnection of the water supply. Therefore, understanding and adhering to these legal requirements is not just about compliance but also about protecting the community's health and well-being.</p>

<h2>Benefits of Regular Backflow Testing</h2>
<p>Conducting regular backflow testing has several benefits. Firstly, it ensures the safety and quality of your water supply by detecting any potential issues early. Secondly, it helps in maintaining the efficiency of your plumbing system, preventing costly repairs in the future.</p>

<figure id="figure-b9ajqn0cismi1b4rmn"><img id="b9ajqn0cismi1b4rmn" src="https://cdn.durable.co/getty/83d8BDz5iokZYsxHX7cSjiPIIj1vpP0S4nOUDXXbxcQzamNQhWKtn5kTKoYm1qNn.jpeg" alt="water testing" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<p>Moreover, regular maintenance can extend the lifespan of your plumbing infrastructure. By addressing minor issues before they become major problems, homeowners can save money and resources in the long run.</p>

<h3>How to Conduct Backflow Testing</h3>
<p>Backflow testing should always be conducted by certified professionals. These experts have the necessary tools and expertise to accurately assess and service your backflow prevention devices. The process typically involves checking the pressure levels, ensuring valves are functioning correctly, and verifying that no contaminants are present.</p>

<ul>
    <li>Schedule an appointment with a certified tester.</li>
    <li>Ensure all backflow prevention devices are accessible.</li>
    <li>Review the test results and follow any recommended actions.</li>
</ul>

<h2>Choosing the Right Professional</h2>
<p>When selecting a professional for backflow testing, it’s important to consider their qualifications and experience. Look for certified testers who have a proven track record of reliability and thoroughness. Recommendations from neighbors or local reviews can also be helpful in making an informed decision.</p>

<figure id="figure-lmih0ywel7mi1b4rmn"><img id="lmih0ywel7mi1b4rmn" src="https://cdn.durable.co/getty/5gEQWo3BL8kujf5eR8uC0yWHfG7JBVtHUbtEUzWGXK6OiY6BZA1LENHWX5jlTIX9.jpeg" alt="plumber working" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<p>Having a trusted professional ensures that any issues are addressed promptly and that your system is consistently up to standard. This not only protects your home but also contributes to the overall safety of the community’s water supply.</p>

<h3>Conclusion</h3>
<p>Regular backflow testing is an essential practice for California residents. It safeguards public health, ensures compliance with state laws, and maintains the integrity of your plumbing system. By prioritizing regular inspections and choosing qualified professionals, residents can enjoy peace of mind knowing their water supply is safe and secure.</p>

Why Regular Backflow Testing is Essential for California Residents

<p>Water safety is a pressing issue in Southern California, where a combination of environmental factors and infrastructure challenges has brought attention to the quality and reliability of the water supply. As residents become more aware of these concerns, the importance of implementing effective solutions becomes evident. One such solution is backflow testing, a process that can significantly improve water safety.</p>

<h2>Understanding Backflow and Its Risks</h2>
<p>Backflow occurs when water flows in the reverse direction, potentially allowing contaminants to enter the clean water supply. This can happen due to changes in pressure within the water system, often caused by events like a broken water main or increased demand from firefighting activities. The risks associated with backflow are substantial, as it can lead to the introduction of harmful bacteria and chemicals into the drinking water.</p>

<p>To mitigate these risks, many municipalities require regular backflow testing to ensure that backflow prevention devices are functioning correctly. These devices are critical in maintaining the integrity of the water supply, preventing contamination, and keeping communities safe.</p>

<figure id="figure-6ay3hutiwpmhx0t9ni"><img id="6ay3hutiwpmhx0t9ni" src="https://cdn.durable.co/getty/7hYZHV2jfJTCYwwItg4j8hNbuFKR5dRM3uWjpNyRZRbl8HnKfk6jZLFrmzw9YJfG.jpeg" alt="backflow prevention" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>The Importance of Regular Backflow Testing</h2>
<p>Regular backflow testing is essential for identifying potential failures in prevention devices before they can lead to significant issues. By conducting these tests annually, property owners can ensure that their systems are working as intended and that their water supply remains uncontaminated. This proactive approach not only protects public health but also helps avoid costly repairs and potential fines associated with non-compliance.</p>

<p>In Southern California, where water scarcity and quality are ongoing concerns, the role of backflow testing becomes even more critical. With increasing population density and industrial activities, the pressure on the water infrastructure is immense, making regular testing a necessary measure.</p>

<figure id="figure-qsnxpb7oo6mhx0t9ni"><img id="qsnxpb7oo6mhx0t9ni" src="https://cdn.durable.co/getty/83d8BDz5iokZYsxHX7cSjiPIIj1vpP0S4nOUDXXbxcQzamNQhWKtn5kTKoYm1qNn.jpeg" alt="water testing" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Steps to Ensure Effective Backflow Prevention</h2>
<p>Implementing effective backflow prevention requires a few key steps:</p>
<ol>
    <li><strong>Install Approved Devices:</strong> Ensure that only approved backflow prevention devices are installed by licensed professionals.</li>
    <li><strong>Regular Testing:</strong> Schedule annual tests with certified testers to ensure devices are in good working condition.</li>
    <li><strong>Prompt Repairs:</strong> Address any issues identified during testing promptly to maintain system integrity.</li>
</ol>

<p>By following these steps, property owners can contribute to a safer, more reliable water supply for their communities.</p>

<figure id="figure-nxlqa049hgmhx0t9ni"><img id="nxlqa049hgmhx0t9ni" src="https://cdn.durable.co/getty/fdgeQ2vsC3l9o8tgCHIUeNQSeY5Bsp3QSKCFuMjqXDgZoW2LhURxyvvdcJXq7ftx.jpeg" alt="plumber inspection" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Community Involvement and Education</h2>
<p>Community involvement plays a significant role in enhancing water safety. Educating residents about the importance of backflow prevention and encouraging them to participate in regular testing can lead to more widespread adoption of these crucial measures. Local governments and water agencies can support these efforts through workshops, informational campaigns, and incentives for compliance.</p>

<p>By fostering a culture of awareness and responsibility, communities can work together to safeguard their water resources and ensure a healthier environment for everyone.</p>

<h2>The Future of Water Safety in Southern California</h2>
<p>As Southern California continues to face challenges related to water supply and quality, the role of backflow testing will remain vital. Innovations in technology and increased regulatory focus are likely to enhance the effectiveness of these measures, providing greater protection against contamination risks.</p>

<p>Ultimately, the commitment to regular backflow testing and prevention is an investment in the long-term safety and sustainability of Southern California's water systems, ensuring that future generations have access to clean and safe water.</p>

Trending Water Safety Concerns in Southern California: How Backflow Testing Can Help

<h2>Understanding Backflow Testing Services</h2>

<p>Backflow testing is a crucial part of maintaining a safe water supply, yet many misconceptions surround this essential service. To ensure your water system is functioning properly, it's important to debunk these myths and understand the reality of backflow testing.</p>

<figure id="figure-dnfrkf4iw7mhsqho9g"><img id="dnfrkf4iw7mhsqho9g" src="https://cdn.durable.co/getty/38h3Kc5EXqr5pkYLWr1AdMbDDHOeHV0x9ystdi4R5PxSb6Fa0pfcl6uskCA1oSMH.jpeg" alt="backflow testing" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h3>Myth 1: Backflow Testing Is Unnecessary</h3>

<p>A common misconception is that backflow testing is unnecessary. However, this couldn't be further from the truth. Backflow testing is critical for preventing contamination in your water supply. It ensures that the water flows in the right direction, keeping pollutants and chemicals out of your drinking water.</p>

<p>Backflow can occur due to changes in pressure within the water system, leading to potential health hazards. Regular testing ensures any issues are identified and resolved promptly.</p>

<h3>Myth 2: Backflow Testing Is Expensive</h3>

<p>Many people believe that backflow testing is costly, but in reality, it's a cost-effective practice. The expense of regular testing is minimal compared to the potential costs of repairing a contaminated water system or addressing health issues caused by polluted water. Investing in backflow testing saves money and protects your health in the long run.</p>

<figure id="figure-mpi5yw81gmhsqho9g"><img id="mpi5yw81gmhsqho9g" src="https://cdn.durable.co/getty/avQ46iZdEHeou5B9US69WNafMPCrw28VaGWb6H7ZtFoxhOdlYRvXYAahpnZlAIBL.jpeg" alt="water inspection" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h3>Myth 3: Only Commercial Properties Need Testing</h3>

<p>Another common belief is that only commercial properties require backflow testing. While commercial establishments certainly need regular testing due to their complex water systems, residential properties are not exempt. Homes can experience backflow issues, especially if they have irrigation systems or swimming pools.</p>

<p>Ensuring that your residential property undergoes regular backflow testing is just as important as it is for commercial properties.</p>

<h3>Myth 4: Testing Can Be Done by Anyone</h3>

<p>Backflow testing is a specialized service that should be conducted by certified professionals. This ensures that the testing is accurate and any potential issues are correctly identified. Professionals have the necessary training and equipment to perform the tests effectively.</p>

<figure id="figure-efadegqft9mhsqho9g"><img id="efadegqft9mhsqho9g" src="https://cdn.durable.co/getty/fZMq6Y49wxp9sq7Rt0lDfq0Wfnos0iZXLoxATpz0NXawUjT5oKnU8kCF6RZmFF8V.jpeg" alt="certified technician" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h3>Myth 5: Backflow Devices Don't Need Maintenance</h3>

<p>It's a common myth that once a backflow prevention device is installed, it requires no further attention. In reality, these devices need regular maintenance and testing to function correctly. Neglecting them can lead to malfunctions, increasing the risk of contamination.</p>

<p>Regular maintenance checks ensure that the devices are working correctly and that your water supply remains safe.</p>

<h2>Conclusion: Prioritize Backflow Testing</h2>

<p>Understanding the facts about backflow testing services is essential for maintaining a safe and efficient water system. By debunking these common misconceptions, you can make informed decisions about your water supply and ensure the health and safety of everyone who relies on it.</p>

Common Misconceptions About Backflow Testing Services Debunked

<h2>Understanding Backflow Testing</h2>
<p>Backflow testing is a crucial process for maintaining the safety and quality of water in residential and commercial properties. However, there are many myths surrounding this essential service that can lead to confusion among San Bernardino residents. In this post, we'll debunk some common misconceptions and provide clear, accurate information about backflow testing.</p>

<figure id="figure-zhwz2gfc8nmhog66p6"><img id="zhwz2gfc8nmhog66p6" src="https://cdn.durable.co/getty/38h3Kc5EXqr5pkYLWr1AdMbDDHOeHV0x9ystdi4R5PxSb6Fa0pfcl6uskCA1oSMH.jpeg" alt="backflow testing" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Myth 1: Backflow Testing Is Not Necessary</h2>
<p>One of the most prevalent myths is that backflow testing is unnecessary. Some homeowners believe that their plumbing system is immune to backflow issues. However, without regular testing, you may unknowingly expose your water supply to contaminants. Backflow can occur when changes in water pressure allow contaminants from external sources to enter the clean water supply.</p>

<p><strong>Regular testing</strong> ensures that your backflow prevention devices are functioning properly, safeguarding your water quality.</p>

<h3>Understanding the Risks</h3>
<p>Contaminated water can pose significant health risks, affecting not just your household but also the wider community. This is why local regulations often mandate annual backflow testing for certain properties. Ignoring this requirement can result in fines and water safety issues.</p>

<figure id="figure-ze7yjvxgwrmhog66p6"><img id="ze7yjvxgwrmhog66p6" src="https://cdn.durable.co/getty/fS9d7V5nAjmpVPXvnEjaiA9JQht5zUs2qbjdMlpgOdc1LK1J0yCm57jLgWKOwnGB.jpeg" alt="water contamination" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Myth 2: All Plumbers Can Perform Backflow Testing</h2>
<p>Another common misconception is that any plumber can conduct backflow testing. In reality, only certified backflow testers are qualified to perform these inspections. These professionals have specialized training to identify and address backflow issues effectively. Hiring a certified tester ensures that the job is done correctly and that your property complies with local regulations.</p>

<h3>Finding a Certified Tester</h3>
<p>When seeking a backflow tester, ensure they have the necessary certification and experience. Certified testers will provide documentation of their credentials, giving you peace of mind that your water supply is protected.</p>

<figure id="figure-zzompnxecmhog66p6"><img id="zzompnxecmhog66p6" src="https://cdn.durable.co/getty/dq7C2o7MXL6NawHw5aPlDiPT28ss2ml7dmoGTuWDQK3DnDHQqRJU5Smhrp7EFVD4.jpeg" alt="certified plumber" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Myth 3: Backflow Testing Is Expensive</h2>
<p>Cost is often cited as a reason to avoid backflow testing, but this myth doesn't hold up. The expense of testing is minimal compared to the potential costs of dealing with contaminated water or paying fines for non-compliance. Investing in regular backflow testing is a cost-effective measure to prevent expensive repairs and health risks.</p>

<h3>Cost-Benefit Analysis</h3>
<p>Consider the long-term benefits of maintaining a safe water supply. By prioritizing backflow testing, you're investing in the well-being of your family and community. Regular maintenance can prevent costly emergency repairs and ensure compliance with safety standards.</p>

<figure id="figure-h4pnhj5c7mmhog66p6"><img id="h4pnhj5c7mmhog66p6" src="https://cdn.durable.co/getty/eyleCqXhqf1h3yS2Ur5RN81soIM4eTTrmDMJI0BVPtNeD0rJtv9IF8sssix9WCrn.jpeg" alt="cost savings" class="object-cover bg-gray-100" style="aspect-ratio: 16/9"></figure>

<h2>Myth 4: Backflow Devices Don't Need Maintenance</h2>
<p>Some residents mistakenly believe that once a backflow prevention device is installed, it requires no further attention. In truth, these devices need regular inspection and maintenance to function properly. Over time, wear and tear can affect their performance, necessitating periodic checks to ensure they operate effectively.</p>

<h3>Ensuring Longevity</h3>
<p>Routine maintenance extends the lifespan of your backflow devices and prevents unexpected failures. By scheduling regular inspections, you can address minor issues before they become major problems, ensuring the continued safety of your water supply.</p>

<p>In conclusion, understanding the importance of backflow testing and debunking these myths can help San Bernardino residents make informed decisions about their water safety. By dispelling these misconceptions, you can prioritize the health and well-being of your household and community.</p>

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DIY Backflow Prevention Tips: What You Can Do Before Call...

Why Regular Backflow Testing is Crucial for Southern Cali...

Why Regular Backflow Testing is Essential for California ...

Trending Water Safety Concerns in Southern California: Ho...

Common Misconceptions About Backflow Testing Services Deb...

Myths About Backflow Testing: What San Bernardino Residen...