Toilet Flange Below Floor Surface

Oatey 1 2 inch toilet flange spacer.

Toilet flange below floor surface.

Here you can see the results of a toilet having been installed on a toilet flange that is below the floor level. The process is generally the same but the flange is secured down before the floor is finished. The taller stack of soft wax also has a higher probability of failure. Above the existing flange.

A closet flange extender or spacer ring s with flexible gaskets can do that job. If the toilet flange is above even or up to 1 4 inch below t. A sign that the wax ring was not sealing the toilet from sewer gases or preventing water escaping from under the base of the toilet. If your toilet flange is more than 1 4 in.

Since the flange stops at the surface of the floor the wax seal is further down from the toilet itself. If your floor surface is more than half an inch above the closet flange in my case 1 25 you must extend the flange so it s flush with the new floor surface. In most cases the floor of a bathroom is tiled and in this case the tiling is done after the flange is installed. The new floor can be upward of 1 in.

Doubling up the wax ring isn t a good solution because excess wax can squeeze into the pipe and restrict flow. In a typical toilet installation the floor flange that sits inside the drain opening below the toilet should be positioned so that its bottom surface rests flush against the finished floor or no more than 1 4 inch above or below the floor this ensures that the flange makes a watertight seal against the wax ring that fits between the drain opening and drain outlet horn on the underside of.