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Zinc compatible with copper

Worried about copper conductor head draining into zinc downspout. will it ruin the zinc downspout
thanks,

Ed Smith
architecture - Blue Springs, Missouri
2006

By zinc downspout, I assume that you mean galvanized steel.
You need to put some kind of plastic insulator strip between the contact points. Old milk bottle would work fine.

James Watts
- Navarre, Florida
2006

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