Talk:Vacuum breaker
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Typically a part that is fairly necessary and helps not allow any unwanted contamination back into your homes, restaurants, etc.
Cost?
[edit]Why so much variation in cost of vacuum breaker/backflow preventers (eg $3-35)? Which type is needed for home/yard use? Is freeze-resistance important? JdelaF (talk) 20:58, 15 April 2023 (UTC) JdelaF (talk) 20:58, 15 April 2023 (UTC)