A galvanized pipe is gray as well, but you know it's galvanized if it's also magnetic. You can use a fridge magnet to figure it out. If you have lead or galvanized steel, these pipes will need to ...

Add a new galvanized steel pipe length (nipple) at each end and solder in your copper. Use sandpaper as needed for cleaning the pipe. Then take the union apart and solder the brass end to the copper.

In the opinion of some, the use of galvanized iron for water pipes, conveying water for drinking and culinary purposes, is injurious. Others take opposite ground in regard to this matter, ...

Commonly seen in homes built in the 1950s and 1960s, small amounts of lead have been found in the zinc coating of galvanized pipes before 2014, according to the Environmental Policy Innovation Center.