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Backflow Testing & Prevention in Philadelphia

Protect Your Water Supply with Backflow Testing in Philadelphia

In the metropolitan area, protecting the safety of your drinking water is a mandated responsibility, governed by strict regulations from the PWD and other local authorities. Property owners frequently receive notices requiring annual backflow testing, a critical step that often causes stress due to the complex compliance process and the severe penalty of potential water service termination.

At Delco Storm & Sewer Services, we are sewer and drain experts with Over 40 Years of Combined Experience in the field. We offer the dependable, comprehensive plumbing solutions your property requires. As a licensed and insured contractor, we provide honest and reliable services, ensuring your compliance is met with professional expertise and minimal disruption.

Need certified Backflow Prevention & Testing in Philadelphia? Contact us at (610) 615-7054 or reach out online today.

Understanding Backflow and Cross-Connection

Backflow is the undesirable reversal of water flow in your plumbing system, carrying non-potable (non-drinking) or contaminated water back into the clean public water supply. This serious event usually occurs when a drop in the main city pressure—caused by a water main break or fire hydrant use—creates a siphon effect, reversing the flow.

Backflow is primarily caused by cross-connections: any connection between a potable water line and a source of contamination. In commercial and residential settings in Philadelphia, common sources include boiler systems, irrigation sprinklers, fire suppression lines, and even hoses left submerged in buckets or pools. If a pressure drop occurs, water from these systems can be pulled backward, contaminating the main water lines.

To combat this health risk, municipalities require the installation of backflow prevention devices (RPZ assemblies, double check valves). These mechanical devices are installed on your water service line to act as a barrier, automatically dumping or stopping the reverse flow of water. However, because these devices are mechanical, they must be tested annually to verify they are functioning correctly and maintaining the integrity of the water system.

  • A cross-connection is any actual or potential link between potable water and a non-drinking water source.
  • Backflow can introduce pollutants like chemicals, fertilizers, or sewage into the clean water supply.
  • Devices like Reduced Pressure Zone (RPZ) assemblies must be installed to create a physical barrier.
  • The annual test is critical to check for leaks, pressure imbalances, and proper operation of the valves.

How Do We Conduct Backflow Testing Services?

At Delco Storm & Sewer Services, we approach backflow testing with a methodical process that puts accuracy and reliability first. Our team of trained technicians thoroughly examines your backflow prevention devices using state-of-the-art equipment. We understand the importance of following Philadelphia's regulations and make sure our testing aligns with local requirements.

Our technicians receive ongoing education on changes to Philadelphia’s building and plumbing codes. We train extensively for diverse settings—from historic rowhomes to modern commercial developments—so we’re prepared for the unique infrastructure in each Philadelphia neighborhood. Our in-depth process means we can identify non-compliance before it becomes a problem or leads to water department citations.

Our testing process includes:

  • Initial Assessment: We start with a detailed inspection of your property's water system and backflow devices to identify any areas that need attention.
  • Pressure Testing: Using specialized equipment, we measure the pressure levels to confirm backflow devices can handle changes without contamination.
  • Device Functionality Check: Each backflow preventer is closely evaluated for wear and tear, so it performs as intended.
  • Compliance Documentation: After the test, we provide full documentation detailing the results and any recommended actions, meeting all Philadelphia regulatory requirements.

Why Choose Us for Backflow Testing Services?

People in Philadelphia trust Delco Storm & Sewer Services for backflow testing because of our commitment to quality and dependability. With over 40 years of combined experience, our focus stays on delivering exceptional service that keeps your water supply safe. Our team handles Philadelphia's unique infrastructure challenges with solutions designed for local needs.

As a company rooted in the region, we are known for our dependable response times and trusted advice. Many local businesses, schools, and multi-unit buildings use our services to stay ahead of annual city inspection requirements. We’re familiar with the specific reporting formats and documentation required by local authorities—helping you avoid unnecessary delays or headaches if the city requests verification. We support property managers, owners, and facility teams in staying organized and informed throughout the testing process.

Here are some reasons why people choose us:

  • Dedicated Focus: We concentrate on delivering effective solutions for backflow prevention, setting us apart from general plumbing services.
  • Community Integration: After serving Philadelphia neighborhoods for decades, we know the local infrastructure inside and out.
  • Transparent Approach: We provide honest evaluations and clear pricing, and never use high-pressure sales tactics.
  • 24/7 Availability: Our services remain available around the clock for emergencies, so residents receive help when they need it most.

Philadelphia Backflow Testing Regulations & Compliance Requirements

The City of Philadelphia maintains strict compliance rules to keep the public water supply safe. The Philadelphia Water Department requires annual backflow testing reports for properties with certain types of water connections, such as those with dedicated sprinkler systems, building fire protection loops, or irrigation lines. Failing to complete required testing on time may lead to fines, water service interruptions, or additional inspections.

Each testing provider submits completed reports to the city for review and recordkeeping. It’s essential to work with a team that stays familiar with the latest local ordinances and reporting procedures, as regulations change often. Some buildings, such as healthcare facilities and schools, may face more frequent inspections and need additional documentation to comply with higher-risk infrastructure. When you choose a provider who understands Philadelphia’s process, you reduce the chances of missed deadlines and help protect community health.

Signs You May Need Backflow Testing or Inspection

Certain warning signs may suggest your property needs a backflow device inspection even before your annual city deadline. If you notice changes in water color, sudden changes in water pressure, or unfamiliar tastes and odors, schedule a test right away. Other signs include visible leaks or standing water near device locations, especially after seasonal temperature changes. Lack of recent inspection documentation is another indicator to act quickly to avoid city penalties.

In Philadelphia, construction projects, pipe replacements, or system upgrades may require immediate retesting to satisfy city regulations. If your building recently underwent major plumbing work, proactive backflow testing helps maintain compliance and prevents unwanted disruptions. By looking out for these signs, you protect both your property and your neighbors from avoidable water quality issues.

FAQs About Backflow Prevention & Testing in Philadelphia

 

Is my property required to have annual backflow testing in Philadelphia? 

If your property has any potential cross-connection, such as a fire suppression system, irrigation system, or large boiler, the PWD requires mandatory annual testing and submission of results. This is required for both commercial and qualifying residential properties.

How long does the backflow test take and will my water be shut off? 

The formal test is quick, typically taking less than an hour. However, it does require a temporary shut-off of the water service to your property for that brief time. We schedule your service carefully to minimize this disruption.

What happens if my backflow prevention device fails the test? 

If the device fails, it means it is not protecting your water supply correctly. As drain and sewer experts, we provide an honest assessment of the failure and can perform the necessary repairs or replacement to get your system compliant as quickly as possible.

How do I know I can trust the expertise of your technicians? 

Delco Storm & Sewer Services has Over 40 Years of Combined Experience, and we are fully licensed and insured. We prioritize honest and reliable services and even offer expertise second opinions to ensure you are confident in our findings and recommendations.

Need certified Backflow Prevention & Testing in Philadelphia? Contact us today by calling (610) 615-7054 or reaching out online.

Why We're The Go-To For Your Service Needs

  • Provide Expertise Second Opinions
  • We Provide Honest & Reliable Services
  • Over 40 Years of Combined Experience
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    Real nice guys who really know how to get the job done. I will never use another plumbing company again. They are the BEST! Don't hesitate to use them.

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    We used Delco Storm & Sewer to perform sewer inspection for UD township prior to settlement. We really appreciated how quickly they could get us scheduled and how friendly, communicative and responsive they were in doing so.

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    The response was great. They repaired the pipe, and coordinated the driveway repair. All work was completed in the time that was quoted. Very neat. Highly recommended!

    Jim S.

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