Backflow is caused by back pressure and can cause water contamination. RPZ valves are used to prevent this from happening. RPZ Valves are now commonly required for businesses and homeowners. If you need to test your backflow or need a RPZ valve installed, we are fully trained and licensed for the work.
Madden Sewer & Drain 4152 N. Western Chicago, IL 60618 O (773) 588-7534 F (773) 583-3874 Maddensewer@gmail.com