Backflow Prevention San Diego – Certified Installation, Testing & Repairs

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Solid Plumbing & Drains Inc has been offering property owners & managers across San Diego County superior service for 20+ years. We are a licensed, bonded and insured company with San Diego’s very best plumbing technicians. 

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Protect Your Water Supply with Certified Backflow Prevention San diego

Backflow contamination is one of the most serious risks to your plumbing system. It happens when contaminated water reverses its flow into clean water lines, potentially spreading bacteria, chemicals, or waste into your drinking water. That’s why backflow prevention in San Diego is so important for both homes and businesses.

At Solid Plumbing & Drains Inc., our certified plumbers provide full backflow services across San Diego County, including installation, testing, repairs, and compliance checks. We’ll keep your water safe, clean, and in line with all local regulations.

Learn why protecting against hidden dangers of slow drains and cross-contamination is essential for your family’s health.

Our Backflow Prevention Services Include:

Don't Risk the Health of Your Water Supply

Backflow contamination can lead to serious health problems and even city-wide water issues. Protect your family, employees, and customers by scheduling professional backflow prevention.

backflow prevention san diego

Why Backflow Prevention Is Essential

Backflow often occurs when there’s a sudden drop in water pressure—such as from a main break or high water demand. Contaminants like fertilizer from irrigation, chemicals from commercial systems, or bacteria from stagnant water can flow back into your supply.

This is why the EPA requires strict standards for water system safety (EPA Backflow Guidance) and why San Diego County enforces annual testing (City of San Diego Cross-Connection Program).

Professional backflow prevention services make sure devices are installed correctly, tested annually, and repaired fast when issues arise. Don’t wait until a problem shows up—stay ahead with routine maintenance.

For added protection, consider enrolling in the Solid Care Plan. For just $144/year, you’ll receive preventative maintenance reminders and priority scheduling.

Our Backflow Prevention Services

Backflow Prevention Device Installation

Our team of certified professionals will conduct a thorough assessment of your property's plumbing system to determine the specific backflow prevention requirements. Following this assessment, we will expertly install the appropriate device, such as a double-check valve, pressure-reducing valve, or vacuum breaker, ensuring optimal protection against backflow and contamination of your water supply.

Backflow Testing & Certification

To comply with local water authority regulations, annual backflow testing is mandatory. Our certified technicians will perform comprehensive inspections and meticulously verify the proper function of your backflow prevention device. Upon completion, we will submit all necessary certified reports on your behalf, ensuring full compliance and providing you with peace of mind.

Backflow Device Repairs & Maintenance

Should your backflow prevention device exhibit any signs of leakage, malfunction, or failure to pass inspection, our skilled technicians will promptly diagnose the issue and implement effective repairs. We understand the urgency of restoring protection and maintaining compliance, and we are committed to delivering swift and reliable solutions.

Backflow Surveys & Compliance Checks

Our comprehensive backflow surveys are designed to identify potential areas of risk within your plumbing system. We will conduct a detailed analysis and provide tailored recommendations to mitigate these risks and ensure that your system adheres to all San Diego County regulations. Our goal is to proactively safeguard your water supply and help you avoid costly compliance issues.

Emergency Backflow Services

Backflow incidents demand immediate attention. That’s why our team is available 24/7 to respond to urgent backflow issues. We will swiftly arrive at your location, assess the situation, and take decisive action to prevent contamination and implement necessary repairs. You can count on us to be there when you need us most, protecting your property and ensuring the safety of your water.

Our emergency backflow services include:

Rapid Response

We guarantee a swift response to your call, ensuring that a qualified technician is dispatched to your location as quickly as possible.

Thorough Assessment

Our experts will conduct a comprehensive assessment of the backflow incident, identifying the root cause and any potential areas of contamination.

Immediate Containment

We will take immediate action to contain the backflow and prevent further contamination of your water supply.

Effective Repairs

Our technicians will implement the necessary repairs to resolve the backflow issue and restore the safety of your water.

Comprehensive Reporting

We will provide you with a detailed report of our findings and the actions taken to resolve the backflow incident.

Why Choose Solid Plumbing & Drains Inc?

Certified backflow technicians with local experience

Thorough knowledge of San Diego County regulations

Upfront pricing and no hidden fees

Fast response times and minimal disruption

Excellent customer service and ongoing support

Backflow Prevention FAQs

Contact Solid Plumbing & Drains today to schedule an appointment or request a quote. Call us now.

What is backflow?

Backflow is a phenomenon where water flows in the opposite direction than its intended path within a plumbing system. This reversal can have serious consequences as it has the potential to introduce contaminants into the clean water supply. These contaminants can include a range of harmful substances such as chemicals, dirt, waste, and other pollutants.

Backflow can occur due to a variety of reasons, including a drop in water pressure, a sudden increase in water demand, or a malfunctioning backflow prevention device.

It is crucial to have proper backflow prevention measures in place to protect the safety and integrity of our water supply.

Backflow prevention devices are essential plumbing components that safeguard the purity of your water supply. The installation of these devices is not merely a recommendation; it is a mandate in many jurisdictions, especially for properties equipped with:

  • Irrigation systems: These systems use water from non-potable sources, such as ponds or wells, which can contain contaminants like pesticides, fertilizers, or bacteria.
  • Fire sprinkler systems: These systems often draw water from stagnant sources that may harbor rust, sediment, or other impurities.
  • Commercial equipment: Certain commercial equipment, such as boilers or chemical processing units, may contain hazardous chemicals that could contaminate the water supply if backflow occurs.


By preventing the backflow of contaminated water into the potable water supply, these devices play a critical role in protecting public health and ensuring the safety of drinking water.

A backflow prevention device failure poses a significant risk to both your personal water supply and the broader public water system. When a backflow preventer malfunctions, contaminants and pollutants can infiltrate the potable water, leading to potential health hazards and widespread water contamination.

Immediate Consequences:
  • Contamination of Your Water Supply:  Backflow allows non-potable water to mix with your drinking water, introducing harmful substances like chemicals, bacteria, and other contaminants. This can cause illness, gastrointestinal issues, and other health problems for anyone who consumes the contaminated water.
  • Contamination of the Public Water Supply: In severe cases, backflow can contaminate the entire public water distribution system, affecting a large population and causing a public health crisis.

Additional Consequences:
  • Fines and Penalties: Failure to maintain a properly functioning backflow prevention device can result in fines and penalties from local water authorities.
  • Legal Liability: In cases where backflow causes illness or damage to property, the property owner may be held legally liable for the consequences.


A functioning backflow prevention device is essential for protecting public health and safety. By taking preventative measures and addressing any issues promptly, you can help ensure the safety and integrity of your water supply and the broader community’s water system.

Backflow prevention is not only a matter of public health but also a legal requirement for many properties. While not all properties require backflow prevention devices, they are mandatory for many commercial and residential properties that connect to specific water systems. These systems typically include irrigation systems, industrial systems, and fire protection systems.

The specific requirements for backflow prevention can vary depending on local regulations and the nature of the property. To determine whether your property requires a backflow prevention device, a professional assessment is recommended.

In most cases, backflow prevention devices are required to undergo testing annually. This regular testing helps identify any potential issues or malfunctions that could compromise the device’s effectiveness.

To make the testing process as convenient as possible for you, we offer reminder services.  We will keep track of your device’s testing schedule and send you a reminder when it is time for the annual test. Additionally, we will handle all the necessary paperwork and documentation to ensure that your device is properly certified after the testing is complete.

Backflow Prevention FAQs

Contact Solid Plumbing & Drains today to schedule an appointment or request a quote. Call us now.

Protect Your Property with Certified Backflow Services

Don’t leave your water supply at risk. Trust Solid Plumbing & Drains Inc. for expert backflow prevention device installation, testing, and repairs. We help you stay safe, compliant, and confident in your water quality.