How to Replace a Toilet

Man installing new toilet.
What You'll Need
Toilet bowl and tank
Bowl gasket
Trim caps (if not with toilet)
Bathtub caulk/sealant
Flat-ended riser tube
Trap wrench/water pump pliers
Rustproof washers
Toilet seat
Hold-down bolts, washers, nuts
Plumber's putty
Supply valve
Adjustable open-end wrenches
Large screwdriver

Because most toilets are comprised of a simple tank and bowl design, replacing a toilet is usually an easy project. Read this article for advice on replacing this type of toilet. If you have a different style toilet, the process will not be identical. Skip here for advice on stopping a toilet from constantly running. Always adhere to the packaging instructions. Look to the illustration shows the basic components of a toilet.

Preparing the Workspace

Begin by recording the space between the the closest bolt and the wall, which is termed the rough-in. A general rule is to expect a 12-inch space, but a sales associate at the home improvement store can help make sure you get the right size toilet.

Shut off the water and hold the lever to completely empty the tank and bowl. Thoroughly dry any water that is left in the unit.

Dismantle and Dispose of the Original Unit

Loosen and remove the coupling nut by applying an adjustable wrench. Pliers may also be required. Remove the bolts holding the tank in place and get the tank out of the way.Detach the tank from the wall if needed. Remove the hold-down bolts from the bowl, and remove the bowl.

Snap the seal between the bowl and its seat and easily lift the bowl away from the house. Plug the flange to keep sewer gases from leaking into your home.

Getting Ready to Install the New Toilet

Completely clean the entire space and install any new plumbing or hardware.Modern supply valves are compatible with flexible riser tubes for supplying the toilet's flush water.

Ensure that the toilet flange rises .5-inches above the floor. Do a dry run and line up the toilet to ensure that all of the components install properly. Apply the first hold-down bolts.

Installing the New Unit

Generally speaking, the process for adding the new unit is the direct reverse of taking the old one out. Lay newspaper for protection, then once the bowl is inverted, seal

Hold the toilet bowl in position directly above its floor flange, then lower it into place.

the soil flange to the toilet with a gasket.

Wax gaskets come both with and without sleeves. Seal the base of the toilet bowl according to the manufacturer's recommendation. Unplug the flange and place the bowl. Position the bowl over the floor so that the horn faces the flange and slowly put in place.

Apply downward pressure and rock the toilet into place. Make sure that the toilet is level.

Adding the Tank

Install any necessary hardware. Install the rubber spud washer according to the manufacturer's instructions. Once it's in place, place the tank. Finally put the tank mounting bolts in place.

Finishing the Project

Connect the water line using a coupling nut. Restore the water. Trim and caulk as necessary. Remove any excess material. Test the toilet and make sure it works properly.

Information in this article has been furnished by the National Retail Hardware Association (NRHA) and associated contributors.