Commercial Backflow Testing Services

Liability for water backflow preventer problems can be disastrous for you and your neighbors. Annual commercial backflow testing is required by law to protect the water supply.

A knowledgeable, kind-of-a-neat-freak certified PDM plumber will clean, adjust, calibrate and reset the finer points of your RPZ water back flow preventer.

Contact PDM for trusted commercial cross connection inspection. We test, repair and install RPZ water backflow preventers. Call us at 815-390-7095 .

Certified Commercial Backflow Testing Services

For reduced pressure zone (RPZ), cross connection certified devices or water backflow preventer testing call the area’s oldest certified plumber for trusted service.

We offer custom designed RPZ water backflow cross connection systems to protect your water and meet state codes. Hospitals, medical centers, laboratories, commercial and residential experience. Learn how we can prevent sewage from backing up in your building. Call for a free commercial water back flow test or repair estimate.

Send PDM Since 1885 a message online or call 815-390-7095 today!

What Is Water Backflow?

Think of water backflow as an unwanted flow in the opposite direction you need - so if you want dirty water to flow away from your building, in a backflow situation the dirty water could flow back and contaminate your drinking water and cause you to have to shut down.

Any crossed connection in your water system could allow for backflow.

A water cross connection is where a non-drinking water substance (sometimes deadly) has the ability to come in contact with drinking water. Water cross connections such as these can easily enable contaminants to enter the water lines through a process known as backflow.

When was the backflow preventer invented?

Beginning in 1930, rudimentary pressure vacuum breakers were being designed and developed in the Los Angeles area. Double check assemblies followed shortly thereafter. In the 1950s, the design of the double check became more of what we see today. It was the main backflow assembly being used until the development of the RPZ and high hazards were defined. Read more of the history.

Commercial RPZ Backflow Inspection You Can Count On

For over 139 years PDM has been a trusted neighbor you can count on.  Once you realize PDM has your back you can totally rest easy - something we know business owners rarely get!

Commercial Cross Connection Plumbing Testing Services In Greater Joliet

Our commercial water back flow test team can maintain, repair, install and manage your water backflow RPZ controls while you focus on running a business. We provide comprehensive project management services so you don’t have to worry about a backflow testing project. Plus, we offer small to large RPZ cross connection service and savings.

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