Rust Stained Porcelain Home › Forums › Public Forums › General Plumbing › Rust Stained Porcelain This topic has 2 replies, 3 voices, and was last updated 23 years, 11 months ago by Harold Kestenholz. Viewing 2 reply threads Author Posts 28 Sep 2000 at 9:03 am #273590 MasterPlumbersKeymaster Have severe rust stains in my toilet bowl. How can I remove them? 28 Sep 2000 at 12:55 pm #288087 bungieParticipant Big pair of rubber gloves, big pair of protective glasses. Then put a small amount of hydrochloric acid on a rag and one or two wipes and its gone DO NOT USE THIS ON A SEPTIC SYSTEM ACID BURNS !!!!! 28 Sep 2000 at 7:15 pm #288088 Harold KestenholzParticipant Right-o Bungie. Chlorine is the bleacher in chlorine bleach. Hydrochloric acid has chlorine to bleach too. Imagine getting chlorine bleach on your skin or eyes 100 times more powerful than your household product. Be careful. Author Posts Viewing 2 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In