Mixed Up Backflow Detector Assembly

This is a new installation of an 8” Colt 300BF with a ¾” Ames 2000BM3 detector assembly.

If you look closely you will see the upstream side of the ¾” Ames 2000BM3 is connected to shut off valve #2, and the downstream side is connected to shut off valve #1. The detector meter itself is connected correctly with the direction of flow arrow pointing up. However with the way this is set up the detector meter can only run backwards.

This is an improper installation which has created an unprotected cross connection.

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