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The toilet flange connects the bottom of the toilet bowl to the drain on the toilet floor. When the toilet has a leak under your feet, you may need to replace the toilet flange. After lifting the toilet from the flange, you will find that replacing the flange is not too difficult, but in some cases it may be a good idea to hire a plumber.
Steps
Remove the toilet
- You can also place the toilet in a basin or a nearby bathtub, but the bottom of the toilet can scratch the ceramic tiles and/or the basin surface.
- If the valve is closed and the water is still not completely shut off, you must close one more valve on the line – it may be necessary to close the master valve near the water meter.
- Use a vacuum cleaner or a large sponge to absorb any remaining water in the drain.
- Some water will come out of the pipe, so you should have a towel ready to absorb.
- Each nut usually has a metal washer underneath, it can also be a plastic one. You also remove the temple long.
- New toilet flanges are usually sold with nuts, bolts and washers, but you should still keep the old ones in case you need them.
- You need to raise the toilet vertically to get rid of the 2 bolts that pierced the base. After lifting the toilet, step aside to place it on the pre-lined newspaper or rag.
- Residual water will come out when you move the toilet, so you need to prepare a towel to wipe it.
- Some people do not rush to stuff the end of the pipe until the old flange is removed. However, if you stuff the block now, it will prevent odors early and avoid accidentally dropping objects there, like nuts, bolts etc..
Clean and inspect toilet flanges
- Have newspaper or rags nearby so you can clean the knife while you shave. The wax ring will burst into pieces.
- Keep these screws as a spare for the screws sold with the new flange.
- If the flange is not cracked, chipped or deformed, you can reinstall it with a new wax ring. However, if it no longer looks good, you should replace it.
- Even if you reuse the old flange, a new wax ring must be installed.
- If the flange is PVC but is glued to the inside or outside of the PVC outlet pipe, you will need to use a chisel and/or drill to remove it. If you damage the drain pipe in the process, the repair cost will be very expensive. [10] X Research Source
- If the old flange is made of cast iron and connects to the cast iron outlet pipe, you will have to use a chisel and rubber hammer to meticulously chisel at the edge of the flange. Similarly, if you damage the drain, the repair cost is quite high. [11] X Research Source
Buy the correct replacement flange
- If you can bring your old flange to the utility, this number is for backup purposes only. However, if the old flange is broken then you should definitely have this measurement.
- If you can’t find the right flange or need help in general, ask the shop owner.
- If you do not have an old flange, purchase a new flange with the size of the outlet pipe you have measured.
- Instead of being made from wax, people now also produce rubber washers. However, you can install the rubber washer in the same way as you would a wax ring.
Install new flanges and wax rings
- If you lose new bolts, you can reuse the old flange bolts, provided they are in good condition.
- The flange neck will have a rubber seal to seal the inside of the outlet pipe.
- If the flange edge does not lie flat on the floor, the floor may be warped or damaged by water. You should have your bathroom floor repaired (or have it cleaned by a professional) before continuing with the toilet installation.
- Use a drill to make new screw holes in the floor if needed.
- The old holes are located in the same location, but may be too large for new screws. If so, use a rubber hammer to drive the plastic stopper into the holes, then screw the screw through the hole in the flange and into the socket.
- Flanges are usually secured with 4 screws, but can be more or less.
- Don’t reuse this scarf or shirt – throw it away!
- Professionals like to install wax rings this way to ensure a good seal around the toilet bowl. However, you can also place the wax ring on top of the flange, and then place the toilet on it. [20] X Research Source
- If you’re using the new “wax ring,” which is actually a rubber seal, place the round side over the flange and place the toilet on it.
Install the toilet in the right position
- You must do this step regardless of whether you have previously pressed the wax ring to the bottom of the toilet bowl or placed it on top of the flange.
- If there are plastic caps, put them on top of the bolts. However, if the bolt is too long, use a hacksaw to cut it so that the plastic cover fits snugly on top.
- Plastic couplings are usually manufactured to be hand-tightened, while metal couplings must be screwed with a wrench or pliers.
- While water is entering the tank, check for leaks at the connection between the water supply line and the tank.
Advice
- After removing the toilet, if you find that the flange is fine but there is a leak at the base of the toilet, just replace the wax ring with a new one and check it again.
Warning
- Do not tighten the nut connecting the toilet bowl to the flange too tightly. Tightening can cause the porcelain to crack.
Things you need
- Newspaper or rag
- Wrench
- Plaster knife
- Screwdrivers
- Tape measure
- Towels or old shirts
- New Flange
- New wax ring
This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 2,604 times.
The toilet flange connects the bottom of the toilet bowl to the drain on the toilet floor. When the toilet has a leak under your feet, you may need to replace the toilet flange. After lifting the toilet from the flange, you will find that replacing the flange is not too difficult, but in some cases it may be a good idea to hire a plumber.
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