Quote:
Originally Posted by Keefelane66
A vacuum breaker is only required for a sprinkler system that uses the same water source that provides potable water for the residence.
It’s a back flow preventer
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Sounds like the old days when you only have one source of water which you have to use for internal residence and outside water use. Well, don't we all do that now even if we have irrigation water supplied separately. Seems like I recall a previous thread talking about a similar device required on all outside water faucets. Something makes me think about having a hose connected to the house and perhaps being in a position where there is contaminated water where the hose is residing, and then having a need for backflow protection.