Since the outer layer of zinc wears absent, corrosion can commence to make up inside the pipes resulting in the possible for hazardous substances to impact your private home's drinking water supply. Position a coupling bolt on each bolt hole and tighten the coupling bolts utilizing a wrench or socket https://www.malleableiron-pipefitting.com/industry-knowledge/how-to-connect-non-threaded-galvanized-pipes.html