The ABC's of Plumbing - Backflow Preventer

Posted March 28, 2016

Backflow occurs when there is a pressure change in a plumbing system that causes the dirty water to be siphoned back into the clean water supply. A backflow preventer is an important plumbing device that is designed to prevent this potentially harmful backwards flow into the fresh water supply. There are several types of backflow preventers, the three most common are pressure vacuum breakers (PVB), reduced pressure zone (RPZ), and double check assemblies (DCA). In the home, backflow devices are required for hand-held showers installed in bathtubs, faucets with pullout spouts and kitchen sprayers.

Need Expert Plumbing Services?

Do you have more questions about plumbing in or around Chicago? If so, call 888 868-6667. Live in Florida? Call our experienced plumbers at 813 452-5952. We are always ready to give you the answers you need to enjoy the comfort you deserve!

ABC Plumbing Locations

Arlington Heights, IL

220 W Campus Dr
Arlington Heights, IL 60004
Phone: (888) 991-3942

Evanston, IL

828 Davis St UNIT 205
Evanston, IL 60201
Phone: (888) 868-9369

Downers Grove, IL

1001 Ogden Ave LL4
Downers Grove, IL 60515
Phone: (888) 412-3566

Tampa, FL

4326 W El Prado Blvd Suite 7
Tampa, FL 33629
Phone: (888) 594-9030

Largo, FL

11701 S Belcher Rd Suite 127
Largo, FL 33773
Phone: (888) 465-9799


Our Promises To You

  • Icon of a clock with the number 24

    Convenient For You

    We Work on Your Schedule

  • Icon of a ribbon with a checkmark in the middle

    Background Checks

    We do Drug Tests And
Background Checks Before Hiring

  • Icon of two hands shaking

    No Need For Stress

    Get ABCs Worry-Free Guarantee at No Cost

  • Icon of a shield with a hand giving a thumbs up

    No Surprises

    Pricing is By the Job, Not the Hour