This Old House offers fixes for leaky, loose, clogged, and gurgling toilets, as well as information about dual-flush and low-flow models, high-tech seats, and more
This Old House plumbing expert Richard Trethewey's method for putting in a new toilet—or replacing an old one.… more
To find the source of a toilet leak, put food coloring in the tank. Colored water in the bowl means the flapper valve is faulty. If it drips down the outside, replace the seal between the tank and bowl. Colored water on the floor indicates a cracked wax seal beneath the toilet.