How to Use backflow in a Sentence

backflow

noun

• Metacarpal When the head is lowered, valves in the veins close to prevent backflow of blood.
  — National Geographic, 20 Sep. 2019
• Other goalies who try to use backflow can get caught moving too much, or not be square to the shooter.
  — Matt Porter, BostonGlobe.com, 14 Jan. 2023
• Shut the backflow valve and then open the manual drain valve on the sprinkler system.
  — Timothy Dahl, Popular Mechanics, 16 Sep. 2019
• Second, assign an owner to each backflow point.
  — Barbara Wittmann, Forbes.com, 22 May 2026
• There is no backflow preventer.
  — Barbara Wittmann, Forbes.com, 22 May 2026
• Check valves allow gas or liquid to flow in one direction to prevent backflow.
  — Ashley Strickland, CNN, 14 Apr. 2022
• The corners of the box fan can create a backflow, which can reduce performance.
  — Maggie Menderski, The Courier-Journal, 16 Sep. 2021
• The city plans to build a new pumping station to prevent backflow from storm drains, which sends water into the streets.
  — Talia Richman, baltimoresun.com, 7 July 2018
• Two of her apartment's copper backflow preventer systems were stripped, less than three weeks apart.
  — Gabriela Vidal, CBS News, 19 May 2026
• Also consider installing flood vents, a sump pump in your basement, and a sewer backflow valve.
  — Andrea Riquier, USA Today, 3 Oct. 2025
• Plumbing system is not installed to preclude backflow.
  — Gege Reed, Louisville Courier Journal, 21 Nov. 2025
• The backflow preventer does not get tested once and forgotten.
  — Barbara Wittmann, Forbes.com, 22 May 2026
• Calcium deposits in heart valves lead to scarring that can restrict outflow and allow backflow.
  — WSJ, 8 Oct. 2018
• In what's sometimes termed diffuse or distal esophageal spasm, there may also be a backflow of stomach acids or undigested foods.
  — Mark Gurarie, Health, 20 Dec. 2024
• The facility lacked a backflow prevention device in the mop sink.
  — Veronica Fernandez-Alvarado february 13, Sacbee.com, 13 Feb. 2026
• Start by closing the valve on the backflow preventer, which is also known as a pressure vacuum breaker.
  — Timothy Dahl, Popular Mechanics, 16 Sep. 2019
• Keep in mind that some kits don’t pressure regulators, timers, backflow preventers, and line filters.
  — The Editors Of Organic Life, Good Housekeeping, 7 Mar. 2017
• At mop sink, backflow preventer missing on non chemical dispenser side of splitter with red hose attached.
  — Staff Reports, Florida Times-Union, 24 Mar. 2026
• The cause of the chlorine gas exposure was likely due to the backflow process, which is used to clear out pool filters throughout the day, the news release states.
  — Greta Cross, USA Today, 3 June 2026
• This initiative brings a suite of services that aim to bridge the gap left by traditional backflow test tracking software and programs.
  — Sacramento Bee, 13 Feb. 2024
• The companies that skip this step discover their backflow points in production—often at 10 times the cost.
  — Barbara Wittmann, Forbes.com, 22 May 2026
• Keep in mind that some kits don’t include pressure regulators, timers, backflow preventers, and line filters.
  — The Editors Of Organic Life, Good Housekeeping, 7 Mar. 2017
• The drainage ports in the stable ring base allow for water to flow easily and quickly, preventing backflow so that your food doesn’t sit in dirty water.
  — L. Daniela Alvarez, Better Homes & Gardens, 29 Mar. 2023
• My husband spent last week in a certification class for testing backflow preventers.
  — Barbara Wittmann, Forbes.com, 22 May 2026
• That first round will help pay for the installation and maintenance of backflow prevention valves, which are designed to keep floodwaters out of homes.
  — Adam Harrington, CBS News, 15 June 2026
• That includes where decisions are made, who depends on whose output, where information crosses boundaries and where the backflow points are.
  — Barbara Wittmann, Forbes.com, 22 May 2026
• Another five points was lost because The Pita Stop did not have a backflow prevention device in a faucet where a hose is used.
  — Howard Koplowitz | [email protected], al, 5 Apr. 2023
• Water distribution system is not equipped with adequate backflow prevention device or air gap.
  — Lillie Davidson, Fort Worth Star-Telegram, 2 Aug. 2025
• The regurgitation, or backflow, of blood from William’s existing valve leak had risen sharply — and contributed to a new leak in another valve, his mother said.
  — Erin Alberty, The Salt Lake Tribune, 7 Nov. 2021
• That was because the San Lorenzo Valley district utility made sure the valves in that network prevented backflow.
  — Aaron Steckelberg, Washington Post, 29 July 2024