How to Prevent Backflow in Pipes 

Add Check Valves  

One of the simplest ways to protect your water supply is to install check valves. They let water flow out but slam shut when anything tries to come back in. While some basic plumbing tasks are DIY-friendly, this one is best left to a professional. You may need to call in a plumber to make sure it’s done correctly, but the long-term safety is worth the effort. Check valves are especially helpful if you’ve noticed fluctuating water pressure or if your home sits at the bottom of a hill. Why? Changes in pressure can create opportunities for contaminated water to backflow into your clean supply, especially in homes that are lower than the surrounding area. In this case, a check valve can keep harmful substances out of your drinking water. Once installed, check valves don’t require a lot of upkeep. However, regular inspections can help you catch any issues. Have a plumber inspect your system annually to make sure everything is working as it should. If the valve is showing a lot of wear or won't seal properly, it may need to be replaced.

Invest in a Backflow Preventer

A backflow preventer takes your protection to the next level. This device is specifically designed to stop water from reversing direction in your pipes. It’s usually required in commercial settings but can be just as important for homes that want extra layers of defense. Backflow preventers come in several types, like reduced pressure zone valves, pressure vacuum breakers, or double-check valves. The cost of installing a backflow preventer pales in comparison to the potential expenses of water contamination, which could lead to health hazards or legal issues if you share a communal water line. As a bonus, many insurance companies appreciate the added precaution and could give you some savings on your homeowner's policy. Just like with check valves, you’ll want to have a plumber handle the installation to make sure everything is up to code.

Use an Air Gap

If you’re looking for a zero-maintenance way to combat backflow, consider adding an air gap. An air gap is a vertical space that’s used in dishwashers and sinks that ensures water can’t siphon back into your clean supply. Instead of relying on mechanical parts, air gaps use basic principles of physics to block contaminated water from reversing flow. This method is pretty effective in kitchens and bathrooms, where the risk of contamination is higher. While not as high-tech as a backflow preventer, air gaps are highly reliable and require no ongoing maintenance. Kitchen faucets, dishwashers, and washing machines can all benefit from air gaps. Although they don’t require much upkeep, you should still check them occasionally for blockages. If debris or gunk builds up, it can reduce its effectiveness. A quick clean now and then should keep things running well.

Your Questions About Backflow Prevention Answered  

Do you still have questions about backflow? Here are some common concerns:

• How do I know if my home is at risk for backflow? Homes with outdated plumbing or properties located on lower ground are more vulnerable to backflow issues. It’s also a good idea to stay aware of nearby construction or changes to the municipal water supply, which might increase your risk.
• Can I install backflow prevention devices myself? While some might be tempted, it’s generally best to leave this task to a professional plumber. Incorrect installation can void warranties, violate local codes, and leave you exposed to future problems. 
• How often should these devices be checked? Most professionals recommend annual inspections, especially if you live in an area with frequent water pressure fluctuations. It’s a good idea to schedule these inspections with your yearly home maintenance routine.
• What should I do if I suspect backflow has already occurred? If you notice discolored water, a strange taste, or a sudden change in water pressure, call a plumber immediately. It’s better to act fast and have a professional assess the situation rather than risk further contamination.

Do You Need a Backflow Preventer Installation or Plumbing Repair Service  

Are you worried about contaminated water? Whether you need advice or a full-scale installation, Mr. Rooter Plumbing is here to help. Schedule an appointment for your plumbing installation or plumbing repair service and keep your home’s water supply safe.