Commercial Backflow Testing Services

Water backflow contamination can lead to severe illness and even death. Protect everyone with annual commercial backflow testing. It's required by law for a reason.

Our certified PDM plumbers are meticulous in their approach, ensuring your RPZ water backflow preventer is clean, adjusted, calibrated, and functioning optimally. We're not just plumbers; we're your water safety experts.

Trust PDM for your commercial cross connection inspection, testing, repair, and installation of RPZ water backflow preventers. Try an award winning team for guaranteed service with over 1500 reviews. We care.

Contact PDM or call us today at 815-390-7095 to schedule your FREE RPZ estimate in Joliet SW Chicago suburbs.

What Is Water Backflow?

Think of water backflow as the unwanted reverse flow of water. Instead of dirty water flowing away from your building,backflow can cause it to flow backward, potentially contaminating your drinking water and forcing a shutdown.

Any connection between your clean water system and a non-potable water source (like a fire sprinkler system or irrigation) is a potential pathway for backflow. This is called a cross-connection. When pressure changes occur, contaminants can enter the clean water supply through these connections.

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When Was The Backflow Preventer Invented?

The first attempts at preventing backflow emerged in the 1930s with the development of rudimentary pressure vacuum breakers in Los Angeles. These were followed by double check assemblies. By the 1950s, the double check design had evolved into its modern form and became the primary backflow prevention device until the introduction of reduced pressure zone (RPZ) devices and the categorization of different hazard levels.  Read more of the history.

Would you like to learn more about the different types of backflow preventers or how they work?

PDM installed and maintained some of the first RPZ preventers. Contact PDM or call 815-390-7095 for a knowledgeable, certified team.

Commercial RPZ Backflow Inspection You Can Count On

For over 139 years, PDM has been a trusted neighbor you can rely on. When you choose PDM, you can rest assured knowing your backflow prevention is in reliable hands. From hospitals, to commercial, to homes PDM can help.

Our dedicated team handles every aspect of your Joliet backflow testing project, providing comprehensive project management so you can relax. From small to large RPZ cross connection services, we offer cost-effective solutions tailored to your needs. Call for FREE estimate 815-390-7095 .

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