Can a cast iron clean out plug be loosened?
Can a cast iron clean out plug be loosened? Cast iron has a tendency to rust, so drainpipe plugs that have not been removed in some time may seem molded to the pipe by rust. Loosening a cast iron clean-out plug from a drainpipe requires softening the rust enough to break it free. Spray the perimeter of the cast iron clean-out plug with penetrating lubricant. What to use to clean out cast iron pipe? Spray the perimeter of the cast iron clean-out plug with penetrating lubricant. Spray the seam between the plug and the inside of the cast iron pipe....