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TCEQ Backflow Test Question and answers already passed 2024
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TCEQ Backflow Test Question and answers already passed 2024 Which back flows can prevent back siphonage? - correct answer PVB, SVB, DCVA, RPBA, AVB Which back flows can prevent back pressure? - correct answer DCVA & RPBA Which back flows can handle constant pressure? - correct answer PVB, ...
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