PlumbDIY
New Member
Hello,
TLDR Summary: Is it necessary to screw a toilet flange into a concrete subfloor in order to secure it, or will the flange be sufficiently secured with glue + caulking the toilet?
Longer version: I just demo'd and re-tiled a bathroom which is resting on top of a concrete subfloor. The previous toilet plumbing installation did not have its flange secured to the floor with any screws, so there weren't any screw holes in the concrete. In fact, the previous installation was entirely against code, as it was using an offset flange, but even worse, the offset flange was simply cut and cemented into another piece of pipe in order to make it connect to the sewer pipe below, but that's a different story...
After having a plumber come and fix the underneath piping so that the pipe is the proper distance out from the wall and using the standard connection, I then finished tiling the floor. However, I'm wondering if I need to drill holes through the tile and the cement below and secure the flange with screws, or if I can simply glue the pipe together, caulk the toilet, and be done with it. Obviously the latter would be easier for me so that I don't have to drill the tile (I would be nervous about cracking), but it's more important to me that this is done right, so if that isn't an acceptable way of securing the flange, then I will certainly drill.
Thanks in advance!
TLDR Summary: Is it necessary to screw a toilet flange into a concrete subfloor in order to secure it, or will the flange be sufficiently secured with glue + caulking the toilet?
Longer version: I just demo'd and re-tiled a bathroom which is resting on top of a concrete subfloor. The previous toilet plumbing installation did not have its flange secured to the floor with any screws, so there weren't any screw holes in the concrete. In fact, the previous installation was entirely against code, as it was using an offset flange, but even worse, the offset flange was simply cut and cemented into another piece of pipe in order to make it connect to the sewer pipe below, but that's a different story...
After having a plumber come and fix the underneath piping so that the pipe is the proper distance out from the wall and using the standard connection, I then finished tiling the floor. However, I'm wondering if I need to drill holes through the tile and the cement below and secure the flange with screws, or if I can simply glue the pipe together, caulk the toilet, and be done with it. Obviously the latter would be easier for me so that I don't have to drill the tile (I would be nervous about cracking), but it's more important to me that this is done right, so if that isn't an acceptable way of securing the flange, then I will certainly drill.
Thanks in advance!