RPZ BackFlow Testing


Old School Reduced Pressure Zone (RPZ) Water Backflow Testing Prevents Contamination.

We take care of your equipment like our own. Certified annual RPZ backflow testing spots water pressure problems quickly.

Please call PDM to ask questions and see if we are a good fit for your water safety needs ... or not.


What We Can Do For You.

PDM's Water Backflow Testing Team can maintain, repair, install, test and manage your water backflow RPZ controls while you focus on running a business.

We provide comprehensive RPZ project management services so you don’t have to worry about a backflow testing or filing paperwork. Plus, we offer small to large RPZ cross connection service and savings. From medical centers to commercial to homes.

Stay safe:

An Instant Connection To Danger?

Think of water back flow as an unwanted flow in the opposite direction you need. If you want unhealthy water to flow away from your building, in a backflow situation the "dirty water" could flow back inside and contaminate your drinking water and cause you to have to shut off the water supply.

Your backflow preventer could be in perfect working order, but if your neighbor's backflow preventer fails, they could be letting fertilizer, soap, stagnant water, and much more into your public water supply. Order a certified backflow preventer test every year. It's a type of insurance.


What Is A Water Cross Connection?

Essentially, any crossed connection in your water system could allow for back flow. 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 can easily enable contaminants to enter water lines through a process known as backflow.

When the pressure in a tank or trough dips below the water system’s pressure, this could pull contaminated water into your system. Your "dirty water" could contaminate the public drinking water, leading to potential liability. What is your water pressure?


Which Reduced Pressure Zone (RPZ) Water Backflow Preventers Are Right For You?

Water pressure is a real beast to control. Usually main water piping has a RPZ, sprinkler system RPZ, and landscape watering RPZ. All require a state certified inspection every year to ensure they are working safely. Each town has its own safety code. PDM experts will report test results and file city paperwork.

Invest in RPZ device testing to avoid potential liability from water back flow issues.


Pdm Go Green
Call Now 815-726-6264 Give PDM a call today to learn more about the Go Green Options for our home.

You'll Love Our RPZ BackFlow Testing Services.

A knowledgeable, kind-of-a-neat-freak plumber will clean, adjust, calibrate and reset the finer points to factory specs.

For over 138 years PDM has been a trusted neighbor you can count on. An experienced and state certified PDM water back flow testing specialist is a top choice for your annual water back flow test. Once you realize PDM has your back you can totally rest easy - something we know business owners rarely get! Serving Joliet SW Chicago Suburbs.


A Certified PDM Water RPZ BackFlow Testing Expert Is Nearby

For reduced pressure zone (RPZ), cross connection devices or water back flow preventer device/valve testing call the area’s oldest plumber for certified service. Send us a message online or call today!

Free water RPZ water backflow preventer estimate. We offer custom designed RPZ water back flow 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.


A New Review From Harold

"Excellent Service. Always receive great service from all PDM technicians. Local company providing awesome service. Thank you." -- Harold O.


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