Galvanized Pipe To Copper Pipe Connection

Whenever you join copper water lines to galvanized steel pipe you should be concerned about the corrosion caused by joining two dissimilar metals called galvanic corrosion an electrochemical reaction occurs that causes the steel pipe in this case to rust and clog up.

Galvanized pipe to copper pipe connection.

This will keep the. Next connect copper pipes together until you reach the galvanized pipe threads. Eventually galvanized pipe will have to be replaced and when that happens your choices are to replace it with more galvanized pipe copper pipe or plastic pipe. To limit this problem make the steel copper connections with special dielectric unions rather than with a regular coupling.

The reaction creates scale which will eventually clog the pipe. The rubber or plastic. When water runs through pipes that are made of two different metals it creates an electrical charge that can cause corrosion and leaks in the pipe. The easiest way to connect the copper and galvanized pipes is to use your wrench and unscrew the galvanized piece from the connecting threads.

Also be aware that directly joining two different types of metals in this case galvanized steel pipe and copper can cause rapid corrosion at the joint called dielectric corrosion. It is possible to connect a copper pipe fitting to a galvanized steel pipe. How to connect copper to galvanized plumbing. The dielectric fittings commonly available in home centers photo 1.

When you join pipes made of dissimilar metals the 2010 california plumbing code requires you to do it with a dielectric union.