Blowing Out Sprinklers

Got an issue with blowing out sprinklers, or winterizing water lines for home, cottage or RV?

I do get a lot of questions about this issue. So many that I decided it was time to have a page with questions and answers for all of the folks looking for information on what to do, and what not to do, about blowing out sprinklers etc.

Blowing out sprinklers before the deep freeze arrives is important. Damage to a sprinkler system pipe occurs when that pipe remains partially or completely full of water during the cold winter months. In the winter, that trapped sprinkler water freezes. Water expands as it freezes, and if the there's no place for the forming ice to go as it enlarges from the freezing process the greater volume of ice is powerful enough to rupture the sprinkler pipe. The key is to have sufficient volume to adequately fill the sprinkler lines to ensure that all water is driven out.

You need to be able to connect an air supply to the sprinkler lines at the highest point of them, and open the line at the lowest point. By flowing compressed air at relatively low pressure but high volume into the lines, all water will be driven before the air and out the drain end.

Use the form to add a question or help answer another visitor's question, if you would. Look below the form to see other visitor's comments and suggestions in particular as it relates to the equipment needed to connect an air line to a water line.



Blowing Out Sprinkler Lines

Having an issue with Blowing Out Sprinkler Lines? First, is your post / question / comment on this forum actually about Blowing Out Sprinkler Lines? If it relates to another compressor issue or another brand it cannot appear on this forum. If in doubt, use the forum on the ASK page instead.

I work on responses to information and technical requests daily. Please allow up to 24 hours for a response. Thanks. Bill

Here are other visitor's issues with Blowing Out Sprinkler Lines

Please see below. You may find a solution to your problem already posted.

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About blowing out sprinkler lines 
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Blowing out water pipes 
I am planning to buy a compressor to blow out water pipes for winter. The pipe is 3/4 inch and approximately 50 feet long. What size compressor would …

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