Water Distribution | Backflow Prevention

Рет қаралды 61,867

6 жыл бұрын

Learn about Distribution System Backflow Prevention in this excerpt from our Distribution Exam Review course.
Air Gap - 0:26
RPZ Backflow Preventer - 1:24
Double Check Valve - 5:51
Vacuum Breakers - 7:00
Atmospheric Vacuum Breaker - 7:37
Pressure Vacuum Breaker - 8:18
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Пікірлер: 8

@busterhikney6936 Ай бұрын

Accessable information like this WAS IMPOSSIBLE for regular water guys 25 years ago. Thanks

@randuthekid1433 Жыл бұрын

Thank you my friend. I am taking plumbing classes at Apex and i appericate your knowledge and hard work on explaining these keys terms so simple.

@lifeisgood12341 4 жыл бұрын

the diagrams were great thanks for the post

@cameronsams9183 4 жыл бұрын

This helps a lot in fort shepherd

@reganmorben9248 Жыл бұрын

If I could make one suggestion, I spent most of the video trying to figure out what illustration the narrator was referring to, you guys could really use a pointer or mouse to help this video out.

@fernandofonseca8146 Жыл бұрын

Hy I have a question do I need a backflow preventer on a mobile home that’s haves a deep well?

@ianvangiesen2523 4 жыл бұрын

One confusing part. Near the end you mention that the pressure vacuum breaker can operate against backpressure 7:31) and then at 8:22 you mention that the PVB is NOT designed to protect against backpressure. This does not make sense, can you please clarify?

@lordponzu9910 4 жыл бұрын

PVB’s are only for backsiphonage and must be installed 12” above all downstream piping. They do not protect against backpressure. They definitely made a mistake by saying that it can protect against backpressure.