True or False: A hose bibb used to fill a pool or attach a hose must have a non-removable vacuum breaker to prevent backsiphonage.
Not quite. The answer is A: True
A hose submerged in a pool or bucket is a classic backsiphonage path the moment pressure drops, so essentially every hose bibb needs a non-removable vacuum breaker — one that unscrews defeats the purpose the first time someone takes it off.
Reference: UPC 2021 §603.5.7; Table 603.2 (Hose bibb vacuum breakers)
Checked against the official text
Checked against the 2021 UPC text. Washington's exam is written against the 2015 edition, which we have not read for this section, so confirm it against your 2015 book.
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