Simple drain replacement on old sink

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Old 03-11-15, 07:23 AM
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Simple drain replacement on old sink

Doing a simple bathroom sink Trap drain replacement at a friends OLD house.
the mount against and into the wall has an original old worn cast iron 1 1/2 inch nipple.
My question concerns this wall tube connection. Would there be an issue or
any problem using a new Chrome plated brass (cheap china stuff) wall tube? into the existing wall which is cast iron??
I know there is always concern when two different metals have contact
I will be using plumbers tape.
thanks
 
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Old 03-11-15, 09:20 AM
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The two different metals won't be a problem there. You may even consider using plastic for the new drain and trap.
 
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Old 03-11-15, 11:18 AM
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Use a trap adapter, 1-1/2 inch threaded to 1-1/4 inch slip.

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