How to Blow Out Water Lines With an Air Compressor

What You’ll Need

Assuming you don’t have an air compressor already, you’ll need to purchase one. You can find a decent air compressor at most hardware stores.

In addition, gather an adjustable wrench, screwdriver set, plumbing snake, and some rags or towels.

Shut Off the Water Supply

It is important to shut off the water supply before removing fixtures and draining lines. This will prevent any water from entering the system and causing damage.

There are two ways to shut off the water supply:

By turning off the main valve or by using a bypass valve. The main valve is usually located near the meter, while the bypass valve is typically located near the fixture being removed.

Remove All Fixtures and Drain the Lines

Assuming you want a blog titled “Remove All Fixtures and Drain the Lines”:If you’re planning any sort of home improvement that involves water lines – such as a kitchen or bathroom remodel – then you’ll need to know how to remove all fixtures and drain the lines.

This may seem like a daunting task, but it’s actually quite simple.

Here’s what you need to do:

1. Shut Off the Main Water Supply to Your Home.

This will ensure that no water is flowing into your pipes while you’re working on them.

2. Find the Main Line Inlet for Your Home (Usually Located Near Where the Water Meter Is).

Attach an air compressor to this inlet using a hose with couplings that fit snugly onto both ends.

Make sure there are no leaks before turning on the compressor!3. Once everything is secure, turn on the compressor and let it run until all of the water has been forced out of the pipes and fixtures (you’ll probably hear some gurgling as this happens).

Depending on how much water was in your system, this could take anywhere from several minutes to half an hour or more. Just be patient and wait until there’s nothing left but air coming out of all tapsfaucets in your house.”

4. Once the Lines Are Completely Empty, You Can Go Ahead and Start Working on Your Home Improvement Project!This Is a Great Time to Update Fixtures, Install New Plumbing, or Make Any Other Changes That Require Water Lines to Be Moved or Replaced.

Just remember to turn the main water supply back on once you’re finished so that your home has running water again!

Turn on the Air Compressor

Assuming the reader has followed the previous steps, this section will tell them how to turn on the air compressor in order to clear out their plumbing lines.

The goal is to ensure that all of the water is removed from the system so that it can be properly refilled.

To start up your air compressor, first locate the power switch and make sure it’s turned to “on.” Once you’ve done that, go ahead and plug in your machine. If you’re using an electric model, then simply flip on the switch or circuit breaker.

For a gas-powered unit, however, you’ll need to open up the fuel valve before proceeding (make sure there’s no combustible materials near it when you do!).

After that step is complete, pull out choke knob (if applicable) and then crank up your engine according to its starting instructions until it runs smoothly.

And finally – remember those safety glasses we talked about earlier?

Now would be a good time to put them on!

FAQs

How do you drain water lines with an air compressor?

There are a few ways to blow out water lines with an air compressor. One is to use the pressure release valve on the compressor, which will allow all of the air to escape from the tank quickly.

Another way is to open up the drain cock on the bottom of the tank and let all of the water drain out that way. Whichever method you choose, make sure that you do it slowly and carefully so as not to damage any of your equipment.

What psi do you need to blow out water lines?

You will need an air compressor with at least 90 psi to blow out the water lines.

What size air compressor do I need to blow out RV water lines?

The size of air compressor you’ll need to blow out your RV’s water lines depends on the length and diameter of those lines.

A general rule of thumb is that you’ll need at least 1 CFM (cubic feet per minute) for each foot of line, and more if the line is larger in diameter.

So, for example, a 30-foot long 34-inch diameter water line would require a minimum of 22.5 CFMs from an air compressor.

Can you blow out RV water lines with air?

Yes, you can blow out RV water lines with an air compressor. By using the compressor to create high-pressure air, you can force water out of the lines and prevent freezing.

This is a common practice among RV owners in cold weather climates.

Conclusion

If you’re planning on doing any work with your air compressor, it’s important to know how to blow out water lines. This process will help remove any unwanted moisture from the system and ensure that your tools are working properly.

Here’s what you’ll need to do:

1. Shut off the water supply this is obviously a crucial first step! Make sure all fixtures are turned off and there is no pressure in the lines before beginning.
2. Remove all fixtures and drain the lines once the water supply is shut off, go ahead and remove any faucets or other fixtures that may be attached to the main line.

You’ll also want to open up each valve so that water can begin draining out of the system entirely.

3. Attach an Air Compressor to the Main Line Inlet – Using a Quick-Connect Coupling, Attach One End of an Air Hose

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