Even though guide h2o piping was discontinued during the nineteen sixties, galvanized pipes have been nonetheless in use as late as 1990. The corrosion caused by these pipes can Establish up while in the h2o provide. Most galvanized pipes ended up used in the nineteen fifties and sixties with lead https://www.malleableiron-pipefitting.com/industry-knowledge/how-to-connect-non-threaded-galvanized-pipes.html