How to Replace a Closet Flange

Feb 28th

Closet flange – Closet flange is the part of the plumbing system in your home that is connected to the toilet. A wax ring seal between the toilet flange and maintains the connection of both water and airtight. Closet flange itself is attached to the floor of the basement or ground, either with screws or glue. Replacing a toilet floor flange is to remove the toilet so you can access the tab, then replacing the flange itself. Once this is done, the toilet can be reinstalled. Turn off the water supply to the toilet. In most cases, this is located on the wall behind the toilet. Turn the knob clockwise to turn off the water. Flush the toilet and hold the handle to get rid of all the water inside. Wipe off any excess with towel and sponge. Remove the water supply hose from the bottom of the tank with pliers. Use the wrench to remove the nuts on the bottom of the tank bolts. Lift the tank up and out of the way. Run a sharp knife along the grout in the toilet base. Lift toilet lids on each side of the base. Loosen the screws bowl with the key. Rock the toilet back and forth gently to release flange and any putty or caulk. Lift the toilet bowl out of the way.

Closet flange position
Closet flange position
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Scrape any old caulk around the flange with the knife. Loosen the flange bolts holding the floor, if present. Run the edge of the spatula below the flange. Use the pry bar if necessary to pry the floor flange. Remove and set aside. Remove the old anchors on the ground with the needle nose pliers. Replace with new anchors. Turn over the new flange. Insert the tube of caulk into the caulk gun and cut off the mark of 1/4-inch with scissors. Apply caulk to the bottom of the flange. Rotate the flange right side up and insert into the opening in the flange. To align the bolt holes in the flange line with the anchor holes in the ground. Insert new bolts and tighten. Allow the putty to dry according to the manufacturer’s instructions. Press the new wax ring in place around the opening of the closet flange. Insert the bolts face up on the flange and secure with plastic flange washers. Lift the container and place it on the flange so that the flange bolts poke through the holes in the bottom of the cup. Sit on the bowl to compress the wax ring.

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Insert plastic washers and metal bolts on the flange. Tighten the flange nuts with your fingers. Take the key and tighten the nuts, one at a time, until the vessel is safe. Replace the tank on the back of the cup. Insert the screws into the bottom of the tank bottom and tighten with nuts. Wrap the entrance at the bottom of the tank with plumber’s tape. Connect the water supply hose. Reset the water supply. Let the tank fill, rinse and check for leaks. Tighten the screws as needed. Seal around the toilet base with silicone caulk. A stubborn closet flange can be removed from the flange opening by cutting. You can use a rotary tool to cut the clip into pieces so they can be removed. A cutting disc cutting metal reinforced if used. Be careful not to over-tighten the screws to reinstall the toilet, as this can break your porcelain. Open the windows and turn on the exhaust fan while working to help prevent sewer gas buildup during operation.