How Often Do You Need Backflow Testing in San Diego? A Homeowner’s Guide

Most homeowners in San Diego are at least somewhat familiar with backflow devices. Many locations are required to have them, which also means planning for backflow testing in San Diego to be compliant. As a homeowner, you should be familiar with the local regulations so you know whether you need to have one in your home or whether you already have one that needs to be properly tested and maintained. 

How often does testing need to be completed in San Diego, and is it actually a requirement? In this guide, we will dig further into the importance of backflow testing and share all the details you need to know as a homeowner. Keep reading to learn more. 

What is Backflow, and Why Is It a Concern? 

Backflow happens when the water flow in your plumbing system reverses. Typically, plumbing lines are designed to flow in one direction to bring clean water into the home and carry wastewater away from the home. When backflow occurs, the water flow reverses in the plumbing system and instead of moving clean water, it can carry contaminated water into your drinking supply. 

The contaminated water might be from irrigation systems, pools, industrial sources, and more. Unfortunately, when backflow happens to one home, it can affect public drinking water, too. The contamination process from backflow tends to occur because of back pressure or back siphonage in the main line – perhaps from a water main break, firefighting, or some other circumstances. 

San Diego requires backflow devices for a wide variety of circumstances, including many homes. If you have a backflow device, there are strict rules and requirements for maintenance and testing processes, with the intention of protecting residential and municipal water systems. 

What Do Backflow Prevention Devices Do? 

Photo by Pixabay on Pexels

A backflow prevention device is designed to stop contaminated water from entering the public water supply as well as homes and businesses. The devices are installed in varying places depending on the uses and designs of systems in the home. For example, if you have an irrigation system, the backflow device will be applied to that. However, it can be applied to sinks and other parts of a plumbing system too. 

The systems are particularly important in these scenarios: 

• Irrigation or sprinkler system
• Swimming pools and spas
• Fire suppression systems
• Gray water systems
• Commercial plumbing or industrial equipment

Backflow prevention devices should always be installed by certified professionals. When properly installed, the device will become a physical barrier that prevents the reverse flow of water. Testing is required because the assembly can wear out, break down, or even fail over time. 

San Diego Requirements for Backflow Testing

Whether a backflow device is required or not, if you have one installed on your property, testing will always be required by the law. In the city of San Diego, the requirement is for annual backflow testing. Any property with a backflow prevention assembly will be held to this requirement. 

This enforcement occurs through the Public Utilities Department, which follows the California Code of Regulations, Title 17. The testing process is in place to protect the municipal water supply because if your device fails, it can affect the public supply and not just your home. 

So, here is what you need to know: 

• Frequency: testing is required at least once per year, and you will need to provide proof of testing and status to be in compliance. Testing may be required more frequently depending on the risk level of your systems – not typically an issue for residential properties. 
• Renewal Deadlines: San Diego does send you a notice of required testing as a courtesy so that homeowners and businesses can plan the testing and get it completed before their due date. If you fail to do so, you can face penalties or risk having your water shut off until you are in compliance. 
• Certified Testing: your testing should always be done by a professional company that is certified by San Diego. Using a DIY process or an uncertified contractor is not going to be acceptable. 
• Results Submission: you are responsible for submitting the official reports to the city before your deadline. Most of the certified testers will handle the submission of the official report as part of their service, but you should always make sure it gets completed. 

What Happens During Backflow Testing? 

The testing process is not overly complicated, but you need a certified technician to handle it. Don’t wait until the due date to schedule your testing. When the technician comes to do the testing, they will conduct a series of pressure checks directed at the backflow assembly. The process typically includes these steps: 

1. Shutting off water temporarily to isolate the backflow device
2. Measuring pressure differentials across the valves
3. Checking valve operation and overall condition
4. Documenting any results, as well as any repairs or recommendations
5. Sending the report to the city

The entire testing process will typically take less than an hour and is often complete within about 30 minutes. This timeline could vary depending on the complexity of your system and whether any faults are found. If repairs are made or there are recommendations for updates or changes, retesting will be required when those are completed. 

The Consequences of Skipping Backflow Testing

If you fail to remain compliant, you can get into quite a bit of trouble. The consequences might vary slightly, but these are the possibilities:

• Fines and citations from the city
• Water service interruptions
• Contaminations of your own water supply or neighboring systems
• Liability issues if your plumbing causes a public health concern

It’s not worth putting yourself or others at risk, so do your best to stay in compliance and have repairs made when needed. Mark your calendars and plan ahead for annual testing, have a certified professional you can call, and always maintain records of your own. 

Backflow Testing in San Diego with 1 Affordable Backflow

Backflow testing isn’t just an optional thing to do once in a while. It’s an essential safeguard for your health, your home, and the public water supply. Staying compliant is easy when you know who to call and you stay aware of your annual testing time. 

1 Backflow Testing is certified and happy to help with your testing, repair, or maintenance needs. Contact us today to schedule your test.