What size air compressor do I need to winterize my sprinkler system?

Winterizing your sprinkler system is important to prevent freezing and cracking of pipes. One way to winterize your sprinkler system is to use an air compressor. But what size air compressor do you need? Read on to find out.

What Size Air Compressor Do I Need?

The size of the air compressor you’ll need depends on a few factors, such as the length of your sprinkler pipes and the number of sprinkler heads. A good rule of thumb is that you’ll need at least 1 CFM (cubic feet per minute) for every 100 feet of 5/8-inch pipe. For example, if you have 500 feet of 5/8-inch pipe, you’ll need at least a 5 CFM air compressor.

If you have multiple sprinkler heads, you’ll also need to take into account the number of heads. Each head will require about 0.1 CFM, so if you have 10 heads, you’ll need an additional 1 CFM. This means that if you have 500 feet of 5/8-inch pipe and 10 heads, you’ll need at least a 6 CFM air compressor.


Now that you know what size air compressor you need to winterize your sprinkler system, it’s time to get started! Don’t forget to check your local hardware store or home improvement center for all the materials and supplies you’ll need. And be sure to follow all instructions carefully so that your sprinkler system is properly protected against freezing temperatures this winter.

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