Backflow Testing & Prevention

Backflow testing & prevention
backflow testing

It’s important to schedule backflow testing annually to ensure your home has proper backflow prevention. Backflow is a serious plumbing issue that occurs when drainage water reverses its intended course, flowing in the wrong direction. This causes an unwanted, unsafe backflow of water which can be a severe contamination risk. Illnesses, diseases, and even fatalities are all possible outcomes of unaddressed backflow.

Working with a professional plumber like the team at John C. Flood is key to keeping your backflow plumbing maintained and your water safe to drink. Read on to learn more about backflow prevention and why it’s a necessity!

What is Backflow Testing?

Backflow testing is a common plumbing service offered to evaluate your plumbing system, checking for any occurrences of backflow. A backflow service visit is typically quick and simple, so you don’t need to reserve a huge amount of time for this visit. You should make backflow services a regular part of your plumbing maintenance plan to keep your water safe. 

Backflow prevention devices should be part of your plumbing system. They are manufactured to keep the flow of sewage and drain water flowing in the correct direction, providing a barrier to harmful contamination and keeping it from reentering your home’s potable water supply. Backflow preventers are commonly found in sprinkler irrigation systems and are mandatory on any plumbing systems — residential or commercial — that have hazardous chemicals, fertilizers, additional sources of water, or industrial fluids. 

During a backflow testing visit, expect a plumber to assess how your backflow prevention system is currently working. Your plumber will test the backflow prevention devices by opening and closing their valves, ensuring they are functioning properly. They will test the backflow devices for any signs of leakage, malfunctions, or unwanted movements. If they find anything amiss, they will handle the backflow repairs to ensure your water remains clean.

Importance of Backflow Services

Without regular testing, you could end up with backflow, which are contaminants in your water supply. Your drinking and showering water could carry diseases from back-flowing sewage water without you knowing. A properly working backflow preventer is required anywhere in your plumbing system where drainage water can reverse directions. Regular backflow tests help keep you and your family healthy and safe from contaminated water. 

Backflow Prevention Options

Here are just a few of the places you can install backflow preventers to help keep your home’s water safe:

  • Sinks
  • Dishwashers
  • Swimming pools
  • Hoses
  • Watering systems
  • Restrooms
  • Laundry room

There are different backflow plumbing services available at John C. Flood to help keep your home safe, such as:

  • Backflow preventer installation or replacement
  • Backflow prevention device consultation
  • Backflow inspection 
  • Backflow repair

Schedule Backflow Services with the Pros at John C. Flood

All backflow preventers need to be installed correctly and tested properly to work effectively. Backflow preventers need to be tested at least once per year to ensure they are operating correctly. 

You can trust our team of professionals for all your backflow preventing needs. Contact John C. Flood today to schedule your backflow preventer installation, inspection, or repair.


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    We bought our now nearly-100 year old house in 1998, and have always used John C. Flood. They are responsive, and everyone is SO nice, from Jasmine who schedules visits to the employees who do the house visits. We feel completely comfortable trusting us with our plumbing and heating needs. They have a great understanding of servicing old houses like ours.
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    correct andn effected the component replacement. Overall elapsed time was roughly 45 minutes. Recommend John C. Flood and it staff, especially our technician, most highly.