Introduction:
Welcome to our guide on how to blow out water lines. If you live in an area where winter temperatures drop below freezing, you need to protect your plumbing system from damage caused by frozen pipes. One of the most effective ways to prevent your pipes from freezing is by blowing out water lines. In this article, we will provide you with a step-by-step guide on how to blow out water lines, the advantages and disadvantages of this method, and some frequently asked questions.
What Is Blowing Out Water Lines?
Blowing out water lines is the process of removing all the water from your plumbing system using compressed air. This method is also known as winterizing your plumbing system. By removing all the water, you can prevent frozen pipes and the costly damage that comes with it.
Why Is It Important?
Water expands when it freezes, and this expansion can cause your pipes to burst. Burst pipes can lead to costly repairs and water damage. Blowing out water lines is important because it removes all the water from your pipes, preventing them from freezing and bursting.
What Do You Need?
Before you start blowing out water lines, you will need the following:
| Item | Description |
|---|---|
| Compressor | Air compressor with at least 50 cubic feet per minute (CFM) capacity and a minimum pressure of 90 psi |
| Air Hose | Air hose with a 1/4 inch inner diameter and a quick connect fitting |
| Faucet Adapter | An adapter that fits your outdoor faucet |
| Blow-Out Plug | A plug that fits the water inlet of your RV or boat |
| Goggles | Eye protection is essential when using compressed air |
How to Blow Out Water Lines
Step 1: Turn off the Water Supply
The first step is to turn off the water supply to your home. You can do this by turning off the main shut-off valve. This valve is usually located near the water meter.
Step 2: Open the Faucets
Next, you need to open all the faucets in your home, including the outdoor faucet. This will allow the water to drain out of your plumbing system. Make sure you also flush your toilets and turn on your dishwasher and washing machine to drain the water out of these appliances.
Step 3: Connect the Compressor
Connect the air hose to the compressor and the faucet adapter to the other end of the hose. Screw the faucet adapter onto the outdoor faucet.
Step 4: Blow Out the Water Lines
Turn on the compressor and increase the pressure gradually to avoid damaging your plumbing system. Start with the outdoor faucet and work your way through the house, opening each faucet one at a time and allowing the water to blow out until only air comes out. Once you have blown out all the faucets, turn off the compressor and disconnect the hose.
Step 5: Drain Your Water Heater
If you have a water heater, you need to drain it to remove any remaining water. Turn off the power or gas to the water heater and let it cool down. Attach the blow-out plug to the water inlet and use the compressor to blow out all the water.
Step 6: Add Antifreeze
If you have a RV or boat, you need to add antifreeze to your plumbing system after blowing out the water lines. This will prevent any remaining water from freezing and causing damage. Follow the instructions on the antifreeze container carefully.
Step 7: Close the Faucets
After blowing out the water lines and adding antifreeze if necessary, close all the faucets in your home.
Advantages and Disadvantages
Advantages
Blowing out water lines is an effective way to protect your plumbing system from freezing and bursting. It is also a simple and inexpensive process that can be done by homeowners themselves. Winterizing your plumbing system can save you from costly repairs and water damage caused by frozen pipes.
Disadvantages
The main disadvantage of blowing out water lines is that it requires access to a compressor, which not all homeowners have. If you do not have a compressor, you can hire a professional plumber to winterize your plumbing system for you. Another disadvantage is that blowing out water lines does not remove all the water from your plumbing system, so there is still a small risk of frozen pipes in extreme temperatures.
FAQs
1. Can I Blow Out Water Lines Myself?
Yes, blowing out water lines is a simple process that can be done by homeowners themselves. However, you need access to a compressor and the necessary tools. If you are not comfortable doing it yourself, you can hire a professional plumber to do it for you.
2. Do I Need to Blow Out Water Lines Every Year?
It is recommended to blow out water lines every year before winter to protect your plumbing system from freezing and bursting. If you live in an area with mild winters, you may not need to do it every year.
3. What Happens if I Don’t Blow Out Water Lines?
If you do not blow out water lines, the water in your plumbing system can freeze and cause your pipes to burst. Burst pipes can lead to costly repairs and water damage.
4. How Long Does It Take to Blow Out Water Lines?
The time it takes to blow out water lines depends on the size of your plumbing system and the pressure you use. It can take anywhere from 30 minutes to a few hours.
5. Can I Use a Shop Vac to Blow Out Water Lines?
No, you should not use a shop vac to blow out water lines. Shop vacs do not have enough pressure to remove all the water from your plumbing system, and they can also damage your pipes.
6. What Should I Do If My Pipes Freeze?
If your pipes freeze, turn off the main shut-off valve and call a plumber. Do not try to thaw frozen pipes with an open flame or electric heater as this can be dangerous.
7. Can I Use Compressed Air from a Gas Station?
No, you should not use compressed air from a gas station as it may contain oil or other contaminants that can damage your plumbing system.
8. Can I Blow Out Water Lines in the Spring?
Yes, you can blow out water lines in the spring to remove any water left in your plumbing system after the winter. This can help prevent mold and bacteria growth.
9. Do I Need to Blow Out Water Lines in a Vacation Home?
Yes, you should blow out water lines in a vacation home to prevent frozen pipes. If you are not able to do it yourself, you can hire a professional plumber to do it for you.
10. Can I Leave Antifreeze in My Plumbing System?
Yes, you can leave antifreeze in your plumbing system, but you need to use the right type of antifreeze and follow the instructions carefully. Antifreeze can be toxic to humans and pets, so make sure you use it in a well-ventilated area.
11. How Do I Know When All the Water Has Been Blown Out?
When blowing out water lines, you need to open each faucet one at a time and allow the water to blow out until only air comes out. You can also use a pressure gauge to check the pressure in your plumbing system. When the pressure stabilizes at 0 psi, you know all the water has been blown out.
12. Can I Use Antifreeze Instead of Blowing Out Water Lines?
Antifreeze can be used instead of blowing out water lines, but it is not as effective. Antifreeze can dilute over time, leaving some areas of your plumbing system unprotected. Blowing out water lines is the most effective way to prevent frozen pipes.
13. How Much Does It Cost to Blow Out Water Lines?
The cost of blowing out water lines depends on the size of your plumbing system and whether you do it yourself or hire a professional plumber. If you do it yourself, the cost will be the cost of renting or buying a compressor and the necessary tools. If you hire a professional plumber, the cost can range from $100 to $300.
Conclusion
In conclusion, blowing out water lines is a simple and effective way to protect your plumbing system from freezing and bursting. By following the steps outlined in this guide, you can winterize your plumbing system and prevent costly repairs and water damage. Remember to blow out your water lines every year before winter and to use the right tools and safety equipment. If you have any questions or concerns, do not hesitate to contact a professional plumber.
Closing Disclaimer
The information provided in this article is for educational purposes only and should not be construed as professional advice. The authors and publisher of this article disclaim any liability for any damages or injuries that may result from the use of the information presented herein. It is always recommended to consult with a professional plumber before attempting to blow out water lines or perform any plumbing-related work.
