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A collection of

useful video files

Failing RPZ Backflow Preventers

Watch what can happen when a RPZ Backflow Preventer discharges.

We have collected a range of videos from near and far as a resource of knowledge on the problems of backflow.

Backflow Preventers

These videos shows the people behind the backflow industry and what they do.

How it happens

This video illustrates how backflow can occur.

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