The backflow preventer is a misunderstood piece of hardware in hydronic systems.  "My backflow preventer has failed.  It's dripping.  What should I do?"   It's easy to replace it.... but, has it really failed?

Likely the backflow preventer is doing it's job!  The culprit?  Debris stuck in the check valve.  Greg and Dan discuss how and why the backflow preventer can drip and what to do to eliminate the nuisance drip.

Need a video reference to see how this is accomplished?  Glad you asked!

http://bit.ly/AskCaleffi-NuisanceDripInBFP

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