Stains on Laundry Home › Forums › Public Forums › General Plumbing › Stains on Laundry This topic has 1 reply, 2 voices, and was last updated 24 years, 8 months ago by Guest. Viewing 1 reply thread Author Posts 24 Mar 2000 at 9:52 pm #272720 MasterPlumbersKeymaster I have brown stains on my clothes caused from copper plumbing. Does anyone know how to prevent this. 24 Mar 2000 at 10:05 pm #286189 GuestParticipant I had a similar problem and it wasn’t the copper pipes. It was my fabric softner disagreeing with my water softner system. 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