Repairing small holes in galvanized steel water tank Home › Forums › Public Forums › General Plumbing › Repairing small holes in galvanized steel water tank This topic has 1 reply, 2 voices, and was last updated 20 years, 12 months ago by Retired plbg1. Viewing 1 reply thread Author Posts 19 May 2003 at 10:56 am #276610 MasterPlumbersKeymaster Any help on the above would be much appreciated.Should I try a silicon sealant?The tankmaker is no longer in business… hmm 19 May 2003 at 10:50 pm #294474 Retired plbg1Participant They make a screw plug with rubber washer on it, but it has more then one leak you might as well replace the tank. They can be brazed. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In