Do I need a vacuum breaker (backflow preventer) for my sprinkler system by code?

Saturday, November 13, 2021

A vacuum breaker is only required for a sprinkler system that uses the same water source that provides potable water for the residence. So a sprinkler system served by a separate well, or by a recycled water system, does not require a vacuum breaker—because the possibility of cross-contamination of the drinking water after a water pressure failure is eliminated. See our articles What is a "cross connection" in a home's plumbing system? and Why is a backflow preventer required on lawn sprinkler systems? to learn more.

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Here’s links to a collection to some of our other blog posts about SPRINKLER SYSTEMS:

• What is the difference between regular tap water and recycled/reclaimed water for landscape irrigation? 

 • What problems does a landscape sprinkler system have when it is not used for a long time? 

What devices are code approved for backflow prevention at a sprinkler (lawn irrigation) system?

 Why is the cover plate of some water meter boxes in the ground painted purple?

• Will a sprinkler system work without a vacuum breaker (backflow preventer)?

• Does the receptacle outlet in a garage for a sprinkler control panel have to be GFCI-protected? 

 What is the average life expectancy of a landscape sprinkler system? 

• Does a home inspector check the landscape sprinkler system?

    Visit our PLUMBING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

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