Cross Connection Inspections and 
Backflow Preventer Testing

What is a backflow preventer device? A backflow preventer device is a plumbing fixture that prevents contamination of water supplies by means of cross connections. They are installed in locations required by the state, and cannot be removed. 

How do I know if I have one? Backflow preventers are required to be registered with the state. You can look it up online, or if you don’t have yours tested the state will send you a letter reminding you to do so. Their appearance varies by type and manufacturer, but here is a common one:

What is a backflow preventer test? On a backflow preventer device, the first check, the second check, and the relief valve are checked via a test kit. 

Why are backflow preventer tests required? Backflow preventers are devices that are preventing nonpotable, used, unclean, polluted, or contaminated water or other substance to enter a potable water system. Annual tests ensure that the devices continue to work as intended. 

How often is it required? Backflow preventer devices are required to be tested once every year. The test results are registered with the state by the tester. 

What’s a cross connection? A "cross connection" is any connection or arrangement, physical or otherwise, between a potable water supply system and any plumbing fixture, or tank, receptacle, equipment, or device. 

What is a cross connection inspection? An inspection to ensure that cross connections are not occurring in a building's plumbing system. 

Who has to have cross connection inspections done? Every building that is connected to a municipal water supply is required to have inspections performed. 

Is a cross connection inspection invasive? No. Generally a cross connection inspection can be completed without any disruption to normal business activities and processes. 

Why are cross connection inspections required? The inspections look for areas where it may be possible for nonpotable, used, unclean, polluted, or contaminated water or other substance to enter any part of such potable water system under any condition. 

How often is it required? Cross connection inspections are determined by your municipality, and typically required either every 2 years or every 10 years.

Who can perform these inspections and tests? Only those who have received specialized training and certification through the state.

Why should I have B&M Technical Services perform these tests and inspections?
1. Multiple trained and certified technicians on staff.
2. Special cross connection inspection and back flow preventer testing pricing.
3. Highly experienced in water system mechanical equipment, including backflow preventer devices troubleshooting, rebuilds, and replacements. 


Cross Connection Inspection Programs

·      Cross-Connection Control an organized and structured program to eliminate, monitor, protect and prevent cross-connections from allowing backflow.  Its purpose is to ensure that the public water supply will be protected both in the city main and within buildings.

• We are fully certified to do cross connection inspections and programs with the State of Wisconsin.
  
• We perform commercial and industrial inspections.
  
• We work with the water operator – they administer the program, we provide the inspection services.