Save money and protect your pipes: diy guide to removing outdoor faucet backflow preventers
What To Know
- Use a pair of pliers or an adjustable wrench to remove the cap from the backflow preventer.
- Once the backflow preventer is removed, clean the threads on both the faucet and the backflow preventer.
- If you’re replacing the backflow preventer, wrap the threads with plumber’s tape and then screw the new backflow preventer onto the faucet.
Outdoor faucets are essential for watering lawns, washing cars, and other outdoor tasks. However, they can also be susceptible to backflow, which occurs when contaminated water flows back into the clean water supply. Backflow preventers are installed on outdoor faucets to prevent this from happening. But what if you need to remove the backflow preventer for maintenance or replacement?
Materials You’ll Need
- Adjustable wrench
- Plumber’s tape
- New backflow preventer (if replacing)
- Gloves (optional)
Step-by-Step Instructions
1. Turn Off Water Supply
Before you start, turn off the water supply to the outdoor faucet. This will prevent water from spraying out when you remove the backflow preventer.
2. Locate the Backflow Preventer
The backflow preventer is typically located on the end of the outdoor faucet. It has a cylindrical shape and usually has a blue or red cap.
3. Remove the Cap
Use a pair of pliers or an adjustable wrench to remove the cap from the backflow preventer. The cap may be tight, so be careful not to damage it.
4. Unscrew the Backflow Preventer
Once the cap is removed, you should see the backflow preventer threads. Use an adjustable wrench to unscrew the backflow preventer from the faucet. Turn it counterclockwise to loosen it.
5. Clean the Threads
Once the backflow preventer is removed, clean the threads on both the faucet and the backflow preventer. This will ensure a good seal when you reattach the backflow preventer.
6. Install the New Backflow Preventer (If Replacing)
If you’re replacing the backflow preventer, wrap the threads with plumber’s tape and then screw the new backflow preventer onto the faucet. Tighten it until it’s snug, but don’t overtighten it.
7. Reattach the Cap
Finally, reattach the cap to the backflow preventer. Tighten it until it’s secure.
Troubleshooting
Water is Still Leaking
If water is still leaking from the faucet after you’ve installed the backflow preventer, check the following:
- The backflow preventer is installed correctly.
- The threads on the faucet and backflow preventer are clean.
- The cap is tightened securely.
Backflow Preventer is Stuck
If the backflow preventer is stuck and you can’t unscrew it, try the following:
- Use a penetrating oil to loosen the threads.
- Apply gentle heat to the backflow preventer using a hairdryer.
- Call a plumber for assistance.
Tips
- Wear gloves to protect your hands from sharp edges.
- If you’re not comfortable removing the backflow preventer yourself, call a plumber.
- Inspect the backflow preventer regularly for signs of damage or wear.
- Replace the backflow preventer every 5-10 years, or as recommended by the manufacturer.
Wrapping Up
Removing an outdoor faucet backflow preventer is a relatively simple task that can be completed in a few minutes. By following these instructions, you can safely remove and replace the backflow preventer, ensuring the safety of your water supply.
Questions We Hear a Lot
How often should I replace my outdoor faucet backflow preventer?
Every 5-10 years, or as recommended by the manufacturer.
Can I remove the backflow preventer and not replace it?
No, the backflow preventer is essential for preventing contaminated water from flowing back into the clean water supply.
What are the signs of a damaged backflow preventer?
- Water leaking from the faucet
- Reduced water pressure
