The instructions below are for installing a new two-piece toilet onto the existing flange where an old two-piece toilet has been removed. If you want to install a new toilet in a different location, you will have to modify the existing plumbing lines for the toilet base and tank, according to your local plumbing codes. A project of that size is best left to Woods Sewer and Drain.

Using a putty knife, scrape the residue remaining from the wax ring seal off both the floor and toilet drain flange (and toilet, if you are reusing it). Then, slip each floor mounting bolt, head first, into an adjusting slot of the toilet drain flange.

Lay the base of the toilet gently on its side or upside down and then fit and press the new wax ring seal to the horn (lip) at the toilet's drain opening. If the new wax ring has a plastic or rubber sleeve on one side, position it so it's facing away from the toilet.