Forum Title: Copper to copper dielectric fitting use - corrosion.
Dielectric unions were used above my hot water heater with copper on both sides. I recently purchased this house. The idea probably was to make it easier to replace the hot water heater by having unions present. Now I see however the unions are corroding. Should I jumper across the unions to create a common ground connection? If so, how should it be jumpered, above the unions between hot and cold, or connect all 4 points together? See the attached image. Thanks in advance for the help.
Category: Plumber Post By: NELSON MARQUEZ (Danville, VA), 08/17/2017

doesnt appear to be a D-electric union, do not see the tell tail plastic isolator and the top looks to be copper. dielectric is not copper x copper remove and replace with a regular copper union

- FREDERICK LYNCH (South San Francisco, CA), 09/17/2017

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