Water system back-flow contamination

[sfalvey]

Does anybody have a good picture of the proper installation of a discharge line for a water systems back-flow (cleaning cycle) to the waste line I can "borrow"?

Thanks,

[Michael R. Boyett]

Are you referring to a water softener system?

[Michael Larson]

Originally Posted by sfalvey

Does anybody have a good picture of the proper installation of a discharge line for a water systems back-flow (cleaning cycle) to the waste line I can "borrow"?

Thanks,

Treat it as any other potential cross contamination point.

Specify the need for an air gap.

[sfalvey]

Yes to both above, but i am looking for a picture I can add to my report of a proper installation, I already have on of the wrong way. I have one filed away, but don't have time to locate it.

You know, a picture says a thousand words.

[Michael R. Boyett]

Here is one of a 'field engineered' installation and another of an air gap device that is designed for such an application. Both are courtesy of Brian Kelly if memory serves me correctly.

[sfalvey]

Excellent, thank you.