How to Install Kohler Toilets


Installing a Kohler toilet involves some of the same general directions for installing other toilets; however, Kohler toilets do require some distinct steps to ensure they operate correctly. You must not reuse the hardware for the old toilet with the new Kohler toilet, even if the old toilet is a Kohler as well, since Kohler includes hardware such as closet bolts and nuts that are designed to fit the toilet precisely. By installing the toilet according to Kohler's specifications you will avoid trouble down the road.

Things You'll Need

  • Sponge
  • Bucket
  • Wrench
  • Putty knife
  • Cardboard
  • Wax ring
  • Close-quarters hacksaw
  • Tape measure
  • Level
  • Screwdriver
  • Turn the handle on the water valve clockwise until it is tight, then flush the toilet once. If your toilet does not have a water valve, close the house's main water valve. Remove the cover from the toilet's tank and use a sponge and bucket to drain the rest of the water from the tank.

  • Use a wrench to loosen the connection between the toilet's water supply hose and the water valve. Pop off the plastic caps from the toilet's base and use the wrench to remove the nuts from the closet bolts. Pull up on the bowl to remove the toilet from its seal on the floor.

  • Scrape off the remains of the old wax ring from the toilet's flange using a putty knife. Slide the old closet bolts out of their slots in the flange and slide in the new bolts that come with the toilet.

  • Place a piece of cardboard on the floor and lay the new Kohler toilet on its side on the cardboard. Press a new wax seal onto the bottom of the toilet, with the rounded side of the wax seal pressed against the toilet. Lift the toilet up and lower it over the flange so the closet bolts thread through the holes in the toilet's base.

  • Sit on the toilet without rocking it until the bowl's base touches the bathroom floor all the way around. Put the bolt cap bases over the bolts, then the washers. Tighten the nuts onto the bolts until you feel resistance. Trim the tops of the bolts using a close-quarters hacksaw so the bolts do not extend more than a 1/4 inch from the tops of the nuts.

  • Press the plastic caps over the bolts. Lower the tank onto the bowl, making sure the rubber gasket on the bottom of the tank lines up with the hole on the top of the bowl. Place washers on the bolts, then insert the bolts through the holes in the bottom of the tank. Tighten the nuts on the ends of the bolts on the underside of the tank. Place a level on the tank and tighten the nuts so the tank sits level.

  • Use a wrench to connect the water line to the inlet in the bottom of the tank as well as the opening in the water valve body. Place the toilet seat on the bowl and insert the seat bolts through the holes in the seat and the bowl. Thread the seat nuts onto the ends of the bolts, then insert a screwdriver into the heads of the bolts to hold them steady as you tighten the nuts. Flush the toilet to verify it is working correctly.

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