Reply To: Copper/Cast Iron Union Corrosion

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#295034

Is there the same dielectric phenomena as with steel and copper connections. My local plumbing supply guy swears that because it is a closed system there is no need for the dielectric adaptors. I want to believe him because the pipes will be sealed in a ceiling and I would worry that the gaskets in the dielectric connectors might leak down the road leaving me with a bigger problem. If you agree that I need them, are there more permanent insulators?

» This message has been edited by Cesar on 28 August 2003

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