The toilet should be secured to the floor flange with toilet hold down bolts. The floor flange is secure to the floor with screws. Dry fit the toilet to make sure it doesn't rock. At this point we don't know if the flooring installer just failed to reinstall the hold down bolts or if they loosen the floor flange from the concrete to run the laminate under the flange. If you have a stub coming up, then I'd just leave that. Concrete slab:Toilet flange below floor level [ 4 Answers ] I am Installing a hardwood floor on a concrete slab. The flange of for the toilet will be about an 1" below the floor level. The installation process is the same for a tile floor, a hardwood or carpeted bathroom floor. I have 2 options 1.) You will want to securely mount the toilet flange to the floor. Put the toilet back in place, lining up the toilet with the flange bolts. I used a flange repair ring and got by. I am installing this in the bathroom. The flange can be screwed into the floor. Put on the rubber gloves and using the scraper, remove the remnants of the old wax from the wax ring and the old toilet bolts. Apparently the builder did not fasten the flange to the floor. Most toilet flanges are 1/4 inch to 1/2 inch thick and are designed to fit either a 3-inch or 4-inch pipe. There are a variety of flange types, but it sounds like the one you have looks like this one: As for glue, PVC primer and glue should be used for this type of fitting to properly seal it. It uses either a metal or plastic ring that can render your toilet unusable if broken. It serves as a support so your toilet is stable and drains properly. If your flange is loose or deteriorating, it can leak and erode the surrounding flooring, causing significant damage over time. The bottom of the flange needs to be sitting flush with (or not more than 1/8" above) the finished floor or else the toilet will rock. Steve used an Oatey 4″ replacement toilet flange for cast iron pipes. Remove the toilet and turn it on its side. Is there a problem with using the Tapcon's directly through the ceramic tile and into the concrete? I expected that I would just need to change the wax ring and possibly add shims. I was planning to use 2 1/2 inch Tapcon's, however someone has recommended some type of screw and lead anchor? How does the toilet attach to the floor? A toilet drain flange can sit above or below the finished floor level. The problem is that the bit (brand new) will not make a hole. What is the proper method for attaching a toilet flange to a concrete floor? Depending on the size pipe you used, you may be able to use an inside mount flange (if you have 4"), then you could essentially leave it long, then cut it off after finishing the floor. ! Can you guess how the floor flange is attached to the concrete floor–I don’t recall. I secured the shims to the floor and then seated the toilet. I installed one of my toilets a couple or three years ago, so my memory is a bit foggy. If the toilet flange sits below the finished floor, the toilet will leak. Once you have your floor down cut off the stub and drop on your flange. You are now done, and your flange should sit evenly on your bathroom floor. install the brass flange by just tap conning it to the floor and then set the wax ring and toilet or 2.) I'm fitting a toilet pan onto a ceramic tiled bathroom floor. Thank goodness for that! Next, move your caulk gun to the inset depth you just measured and apply caulk directly to the floor, maintaining the inset depth as you follow the tape. You just don't want it to move. I was reinstalling the toilet using a flange gasket, not wax that I should have. The toilet flange, also known as a closet flange, is the part of the toilet that secures the unit to the floor and connects to the drain pipe.Usually made of PVC, rubber or metal, this piece is circular in shape and usually secured in place with a few bolts. Remove the old supply line and discard. It is just one part of the equation. Keep the toilet flange slots clear so you can still use the flange. The inside diameter is about 3.75". The pan wobbles a bit when it is sitting on this floor where it is to be fitted. It's your choice whether to screw the flange to the concrete floor and attach the toilet to the flange, or to screw the toilet directly to the floor possibly going through holes lined up in the flange. Good videos! The flange leads to the soil stack, a large drain pipe designed to carry a large volume of liquid, etc. To keep your toilet anchored securely, always use a closet flange secured tightly to the floor. You will place the toilet on these after you disconnect it from the flange. Replace the nuts on the bolts. Remember too, there's a waiting time before you can set tile over fresh concrete. The hole in your fixture must be the same diameter of the anchor that you're bolting into the concrete. A handy kit looks like this: Ideally, the flange should sit directly on top of the tile floor. Lastly, insert your wax ring, set your toilet back on the flange, and bolt your toilet to the floor. However, installing the flange on a tile floor is different. In order for this not to happen the toilet flange must sit above the finished floor by at least 1/4″. Just remember keep the concrete out of the drain and get the concrete out … Replace the toilet by lining up the holes on the toilet base with the two bolts. A toilet flange is a component that holds your toilet to the floor. I stood on it, jumped on it and between the concrete floor, self-leveling quickset, tile and grout, it wasn't going anywhere. The toilet flange needs to be on top of the finished floor. Re: How to install closet flange to cement floor; Author: Doug E. (CA) cut riser pipe flush to the floor. Lay the toilet on its side and put the new wax ring on the round mouth that sits on top of the flange. Remove the old flange. Even though the flange was not in direct contact with the tile, the pipe was not going anywhere. In the process of tightening the toilet to the flange, I broke one side of the PVC flange. I have a cast iron pipe with no flange (to attach the toilet) that has an opening flush with the concrete floor in the bathroom. Toilets are attached to a metal or plastic collar known as a toilet floor flange. He began his career in plumbing at the age of 14 while still in high school. Why? Bolts rusted completly out on toilet I have concrete floor I need to make sure it doesnt rock. In order for that type of installation I will need to build up the sub-floor with 1/4 plywood alone with 3/4 hardwood floor. Seems like the floor flange was pretty rusted and some just plain eaten away (built around ’76). So if your toilet sits on the tile, the flange needs to be on top of the tile too. Push the new wax ring in place on the bottom of the toilet. Install the glue in style flange and then tap con that one down. Re: how to mount a toilet flange to subfloor; Author: Paul48 (CT) To categorically state that preventing the bowl from moving is the most important part of the install, is ridiculous. I plan on anchoring the flange with concrete screws (Tapcon). I cannot get them to go down the pipe without hammering them inside. hammer in Metal hit anchors into the flange and floor. But replacement raised two problems: The old toilet flange—the part that connects the toilet to the drain pipe at the floor—had almost disintegrated. Slide a … All of the PVC flanges that you can place on 4" cast iron (that I found at Home Depot) have an outside diameter of 3.75". It’s simple, the watertight seal between the toilet bowl and wax ring will eventually fail. Flanges are made of either plastic, brass, stainless steel, or cast iron. To know about toilet flange installation on tile, read the following section. Line up the hole that you drilled into the concrete with the hole in the fixture. That’s it- you have successfully set up a new toilet flange on a concrete floor. You can rest the new toilet bowl on its side on a padded surface to protect the floor and the toilet and attach the replacement wax ring to the bottom of the bowl. 1. Author; Recent Posts; Kevin L. Sharp. 2. My question is, do I have to screw the pan down to the floor, or can I just stick it down with silicone sealant? I will cut the pipe off flush with the concrete. These bolts will fit into the toilet floor. Concrete Flanges If you run into a flange that is going into a concrete floor, make sure you screw the new flange in with Tapcons, not drywall-type blanks and screws. Lastly, place the wax ring on the flange so that you can later install the toilet on the flange. The toilet flange, or otherwise known as a closet flange, serves the dual purpose of connecting your toilet to the plumbing and attaching it to your bathroom floor. use masonry bit to drill out concrete. Aside from being rust-stained and chipped, it was a water hog, using about three times as much water as a modern toilet. The flange should be fastened to the floor. The flange itself is attached to the floor with screws. Let me add that this is in a tiled bathroom on a concrete slab. Since the stub will be in concrete, you probably don't have to screw down the flange. Place newspapers or towels on the floor next to the toilet. It just spins and gets very hot. The toilet and replacement flange and drain pipe all need … After 90 years of service, this old toilet was ready for retirement. at high speeds. prime/glue flange in correct position. Install the wax ring and lower the toilet onto the flange. The framing, floor, and flange must all be sound for the toilet … Meaning the bottom edge of the flange needs to be on the same plane as the toilet. After a very challanging experience getting most of the pumbing ready to install my new Saniplus upflush toilet, I am stumped on how to attach it to the basement floor. Mount the new flange on the floor with new bolts. The toilet flange is a pipe fitting that both connects the outflow pipe to the toilet and the toilet to the floor. The proper place for the flange is on TOP of the FINISHED floor. Make sure to keep the toilet straight and as perpendicular as possible when lowering. Straddle the toilet, bending at the knees and lift the toilet up. A poured cast iron flange is not going to rock or move anywhere at all if done properly and is by far the best repair option to replace an existing cast iron flange. The spacing of the toilet exit "horn" and sealing surface is designed for this height. I have tile already installed around the pipe as you can see in the picture. Line up your fixture or whatever you want to attach to the concrete. Attach the new flange securely to the floor with new screws. How to Repair the Toilet Flange on a Concrete Floor PrepaTurn off the water supply at the shut off valve under the toilet tank. The instructions say to use a masonary bit to drill holes and then install anchors. Measure the depth and width of the gluing edge of the bowl. 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