What Causes Plumbing Backflow?

May 10, 2023

Backflow is a serious issue in plumbing that occurs when water flows in the opposite direction from its intended path, which can cause contamination of the water supply. This problem can pose health risks to people who consume or come into contact with the contaminated water. It's important to understand what causes plumbing backflow and how to prevent it. Let the professionals at City Plumbing & Rooter help!

Causes of Backflow

There are several different things that can cause backflow in your plumbing, including:

  • A sudden change in water pressure. When the pressure in the water supply system drops, water can be sucked back into the system from the plumbing fixtures in a building. This can happen when there is a break in a water main, or when a fire hydrant is being used in the vicinity.
  • Malfunctioning backflow prevention device. These devices are installed in plumbing systems to prevent the backflow of contaminated water. If the device is not working properly, it can allow contaminated water to flow back into the clean water supply.
  • Cross-connections. A cross-connection occurs when there is a direct or indirect connection between the clean water supply and a source of contaminated water. This can happen when a garden hose is left submerged in a pool, or when a chemical sprayer is attached to a sink faucet.
  • Sewer backups. If the sewer system becomes blocked, sewage can back up into the plumbing system, causing contaminated water to flow back into the clean water supply.

Preventing Backflow Problems

Preventing backflow is essential for maintaining the safety and quality of the water supply. There are several steps that can be taken to prevent backflow, including the installation of backflow prevention devices, regular maintenance and testing of these devices, and the avoidance of cross-connections. If you suspect that there is a problem with backflow in your plumbing system, it's important to contact a professional plumber immediately.

Contact City Plumbing & Rooter to Protect Your Water Supply

Backflow is a serious problem that can pose health risks to people who consume contaminated water. It can be caused by a variety of factors, which is why it's crucial to contact a professional plumber to properly diagnose and fix the issue. If you're concerned about backflow, contact the highly trained and experienced team at City Plumbing & Rooter today to help keep your water supply clean and healthy!

Share by: