Comprehensive Backflow Prevention and Testing
Serving Bowie & Surrounding Areas
Understanding Backflow: Protecting Your Water Purity
What is Backflow and Why Is It a Concern?
Backflow is the unwanted reverse flow of water from a property’s plumbing system back into the public water supply. This reversal can carry harmful contaminants, such as pesticides, fertilizers, chemicals, and bacteria, directly into the clean drinking water that your family and community rely on. It poses a significant health risk and compromises the integrity of the entire water distribution system, making prevention an essential public health measure.
This hazardous condition is typically caused by one of two hydraulic situations: back-pressure or back-siphonage. Back-pressure occurs when the pressure in a private plumbing system exceeds the pressure in the main water line. Back-siphonage happens when there is a sudden drop in pressure in the city’s main, creating a vacuum that pulls contaminated water from a property into the public supply. Both scenarios can lead to widespread contamination if a proper prevention device is not in place.
Ensuring Your System is Compliant and Safe
Our certified technicians follow a meticulous process to ensure your backflow prevention assembly functions perfectly. Using specialized, calibrated gauge equipment, we perform a series of tests to verify that the internal check valves and relief ports are operating according to manufacturer specifications. This test confirms that the device will effectively halt any reverse flow, protecting the potable water supply from potential contamination under both back-pressure and back-siphonage conditions.
Upon successful completion of the test, we certify your device and handle all the necessary paperwork. We promptly submit the official test report to your local water authority, ensuring your property remains in full compliance with municipal codes and health regulations. This comprehensive service provides peace of mind, knowing that your system is not only safe but also officially documented and approved.
From Residential to Commercial Assemblies
The Reduced Pressure Zone (RPZ) assembly provides the highest level of protection against backflow. It is designed for high-hazard applications where the consequences of contamination would be severe. An RPZ features two independent check valves and a pressure-differential relief valve located between them, which discharges water to the outside if one of the check valves fails, providing a clear visual indication of a problem.
Double Check Valve Assemblies (DCVAs) are commonly used in low to medium-hazard situations where the potential pollutants are non-toxic but still undesirable. These devices consist of two independent, spring-loaded check valves and are frequently found on fire suppression systems and large lawn irrigation setups. While effective, they do not offer the same fail-safe protection as an RPZ.
We also service and install Pressure Vacuum Breakers (PVBs) and Atmospheric Vacuum Breakers (AVBs). These devices are primarily used on irrigation systems to protect against back-siphonage only and are not suitable for back-pressure conditions. Our team is fully equipped to test, repair, or replace all major types of backflow preventers to keep your water system secure.


Contact Us Today!
A member of our team will be in touch shortly.

Wayne lamb2025-06-12Trustindex verifies that the original source of the review is Google. Knowledgeable dependable and courteous Laura Hefley2025-06-09Trustindex verifies that the original source of the review is Google. Extremely friendly, excellent work and great prices. Will call them again. Janis Crawley2025-06-09Trustindex verifies that the original source of the review is Google. Great customer service very professional and fast completion of job. Worked on our irrigation system spray heads. Remy Stewart2025-06-08Trustindex verifies that the original source of the review is Google. We had a great experience with Tapped Out Plumbing and Backflow LLC. From the start, they were incredibly informative, taking the time to explain all our options when we discovered a busted pipe. It definitely wasn’t an easy job finding the break, but their team showed real dedication and expertise throughout the entire process. What stood out even more was their willingness to work through the heat of the day to make sure the job got done. That level of commitment didn’t go unnoticed, and we’re truly grateful for how quickly they were able to get us scheduled and taken care of. Highly recommend them for any plumbing needs—especially when you're facing a tough situation. Their professionalism, hard work, and communication are top-notch. schuyler simons2025-06-08Trustindex verifies that the original source of the review is Google. Steven is a good plumber and will always make sure to treat his customer right I've had the opportunity to work with Tapped out Plumbing backflow and have been happy. Ronnie Bell2025-04-29Trustindex verifies that the original source of the review is Google. I called Tapped Out Plumbing and they came the next day. They were very efficient and explained what they needed to do to repair my problem. He also checked my water heaters to make sure there weren't any current problems. I had other issues that he gave me a quote for if/when I wanted to have them taken care of. I would definitely call Tapped Out again. Walter McClure2025-04-14Trustindex verifies that the original source of the review is Google. On the job site quick, courteous and really knows what they're doing very happy with their work. Wolves Claw2025-04-12Trustindex verifies that the original source of the review is Google. We had a leaking pipe under our kitchen sink and called Tapped Out Plumbing and Backflow based on a recommendation. They were quick to respond, on time, and incredibly professional. No upselling, no pressure — just honest work at a fair price. We’ll definitely be using them again for future plumbing needs!

Your Trusted Local Backflow Specialists
Why Choose Tapped Out Plumbing and Backflow?
As dedicated backflow specialists serving the Bowie area, we possess in-depth knowledge of the local water authority’s specific codes and requirements. Our certified technicians have extensive experience working with residential and commercial properties throughout the community, ensuring your system is installed, tested, and maintained in full compliance with all regulations.
We are committed to providing prompt, reliable, and professional backflow services to our neighbors in Bowie. From scheduling your annual test at a convenient time to managing and submitting all official reports to the water purveyor, we make the entire process simple and stress-free for you. Our goal is to ensure your water is safe without disrupting your daily routine.
Protecting our community’s water supply is a critical responsibility. If you have received a notice for your annual backflow test, are concerned about your current system, or need a new prevention device installed at your property in Bowie, contact Tapped Out Plumbing and Backflow today. We provide expert consultations and dependable service to keep your water safe.
Wayne lamb2025-06-12Trustindex verifies that the original source of the review is Google. Knowledgeable dependable and courteous Laura Hefley2025-06-09Trustindex verifies that the original source of the review is Google. Extremely friendly, excellent work and great prices. Will call them again. Janis Crawley2025-06-09Trustindex verifies that the original source of the review is Google. Great customer service very professional and fast completion of job. Worked on our irrigation system spray heads. Remy Stewart2025-06-08Trustindex verifies that the original source of the review is Google. We had a great experience with Tapped Out Plumbing and Backflow LLC. From the start, they were incredibly informative, taking the time to explain all our options when we discovered a busted pipe. It definitely wasn’t an easy job finding the break, but their team showed real dedication and expertise throughout the entire process. What stood out even more was their willingness to work through the heat of the day to make sure the job got done. That level of commitment didn’t go unnoticed, and we’re truly grateful for how quickly they were able to get us scheduled and taken care of. Highly recommend them for any plumbing needs—especially when you're facing a tough situation. Their professionalism, hard work, and communication are top-notch. schuyler simons2025-06-08Trustindex verifies that the original source of the review is Google. Steven is a good plumber and will always make sure to treat his customer right I've had the opportunity to work with Tapped out Plumbing backflow and have been happy. Ronnie Bell2025-04-29Trustindex verifies that the original source of the review is Google. I called Tapped Out Plumbing and they came the next day. They were very efficient and explained what they needed to do to repair my problem. He also checked my water heaters to make sure there weren't any current problems. I had other issues that he gave me a quote for if/when I wanted to have them taken care of. I would definitely call Tapped Out again. Walter McClure2025-04-14Trustindex verifies that the original source of the review is Google. On the job site quick, courteous and really knows what they're doing very happy with their work. Wolves Claw2025-04-12Trustindex verifies that the original source of the review is Google. We had a leaking pipe under our kitchen sink and called Tapped Out Plumbing and Backflow based on a recommendation. They were quick to respond, on time, and incredibly professional. No upselling, no pressure — just honest work at a fair price. We’ll definitely be using them again for future plumbing needs!
30+ Years of Experience
Free Estimates
Financing Available

Learn More About Our Services


