What Size Air Compressor To Blow Out Pool Lines

An air compressor with a minimum of 5 horsepower is required to blow out pool lines effectively. Blowing out pool lines is crucial maintenance to prevent water freezing inside the pipes.

When temperatures drop, water expands and can cause damage to the pool’s plumbing. To avoid such issues, it’s essential to use an air compressor. The most important factor is horsepower, as it determines the volume of air the compressor can generate. A 5 horsepower compressor is recommended for most residential pools, while larger commercial pools may require a more potent machine. Additionally, the right fittings, adapters, and hoses must be used to ensure a proper seal with the pool’s plumbing. By following these guidelines, pool owners can protect their pools against damaging winterization issues.

Blowing out pool lines with an air compressor before winter sets in is essential to prevent damage to the pool system. It’s crucial to choose the right size air compressor to ensure that the job is completed correctly and efficiently.

Incorrect compressor size can result in incomplete removal of water from the pipes. When watering remains in the pipes it expands during freezing temperatures, causing significant damage to the pool system. For this reason, it’s crucial to work with a professional who can help choose the right size air compressor for your pool system, guaranteeing that the job is done correctly.

It’s better to invest in a large-sized compressor with enough capacity to ensure optimal results without any risk of damage to the pool system. So, ensure you make the right choice.

Factors To Consider When Choosing An Air Compressor

When it comes to choosing the right air compressor to blow out pool lines, it’s important to know the specific requirements of your pool system. There are portable and stationary air compressors, as well as reciprocating and rotary screw types.

You need to consider the cfm (cubic feet per minute) and psi (pounds per square inch) ratings for your pool system. Make sure to read the instruction manual or consult with a professional to determine the appropriate size compressor for your pool.

Investing in the right size air compressor will ensure that you are able to effectively and efficiently clear your pool lines each winter, saving you time and money in the long run.

Calculating Cfm And Psi Requirements For Blowing Out Pool Lines

It is crucial to calculate the cfm and psi requirements when blowing out pool lines. The size and complexity of your pool system determines the requirements. To calculate the cfm, multiply the total volume of water in your pool by the desired turnover rate, then divide by 60.

For psi, add up the number of returns and divide by the desired flow rate. The resulting number is the psi required to blow out your pool lines. This formula ensures that your air compressor is strong enough to effectively clear your pool lines.

It’s important to use the correct size air compressor to avoid damage to the pool system. Knowing the cfm and psi requirements for your pool ensures that you have the proper equipment and helps you avoid costly repairs.

Best Air Compressors For Blowing Out Pool Lines

Finding the right air compressor to blow out your pool lines can be daunting. After considering factors such as power, performance, durability and price, we’ve identified three top options. The ingersoll rand garage mate comes with a powerful but quiet motor and is great for larger pools.

The makita mac2400 boasts durability and can be used for a variety of tasks. For smaller pools, the california air tools 8010 is affordable and efficient. Each option has its pros and cons, so it’s important to select based on your individual needs.

By selecting the right air compressor, you’ll easily be able to blow out your pool lines, ensuring a long-lasting pool for years to come.

How To Use An Air Compressor To Blow Out Pool Lines

Before starting the process of blowing out the pool lines, it is essential to turn off the circuit breaker and pump. Next, remove any debris from the skimmer and pump basket. Attach the airline to the pool’s skimmer line and begin blowing the water out of the lines.

Ensure to regulate the air compressor pressure between 45 to 50 psi to avoid damage to the pool system. After the lines are completely drained, remove the airline and reconnect the pool’s plumbing and equipment. Safety precautions include wearing eye and ear protection and using caution around the pool edges.

By following these steps and precautions, you can easily and safely blow out your pool lines using an air compressor.

Using an air compressor to blow out pool lines before winter is crucial. Choosing the right size air compressor is equally important to ensure safe and effective operation. Key factors to consider when selecting an air compressor include cfm and psi requirements.

Safety measures such as using protective gear and ensuring proper ventilation should not be ignored. By adhering to these guidelines, the task of blowing out pool lines can be accomplished with ease. Remember, your individual needs will determine the size and type of air compressor required.

Take the time to calculate these requirements to make sure the job is done thoroughly and efficiently.


Choosing the right size air compressor to blow out your pool lines is crucial to ensure a well-cared-for pool and its equipment. The size you need mostly depends on the length of your pool lines and the amount of water you need to blow out.

As we have discussed, a large air compressor with over 100 cfm and 100 psi is ideal if your pool has long pipelines or extra-large diameter. Also, it’s beneficial for professional pool companies who do numerous pool maintenance jobs throughout the year.

If you have a small to medium-sized pool, you can opt for a smaller compressor with a range between 5-30 cfm. Regardless of the size of your compressor, don’t forget to attach an appropriate fitting and gauge to regulate the air pressure and speed.

Keep in mind that a proper air compressor can save you lots of money in the long run by preventing any damages or costly repairs due to water freezing inside your lines over the winter. So, choosing the right size air compressor is a crucial consideration for providing high-quality pool care.

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