The reason being is because the toilet recesses into the flange when fully installed but when the flange sits even or below the floor the toilet can t properly recess into the flange.
Toilet flange flush below or above floor.
A toilet flange sometimes referred to as a closet flange is the piece of the toilet upon which the toilet rests.
If your flange sits even or below the floor then it s wrong.
Purchase a new one.
The optimum toilet flange height is approximately inch above the floor to achieve the best seal and overall fit.
To get the necessary clearance from the floor you can add a toilet flange extender which is quick and easy to install.
It has to sit evenly on top of the finished floor.
Toilet flange before you purchase the new part identify the specific type you have.
Bring it to a local home depot store for help determining if you need a pvc copper iron or aluminum replacement toilet flange.
Closet flange installation 2 flush with the floor.
This is very important.
Though above floor installation is considered the right way to fit a flange some swear by attaching it level with the floor.
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.
Most extenders come with long bolts which may be necessary if the flange is below the floor level.
The process is generally the same but the flange is secured down before the floor is finished.
The neck of the flange should slide into the pipe snugly.
An improperly fitted toilet is often caused by the flange not sitting on the finished floor but rather sitting above it or it is not level with the floor.
As explained above the lip of the toilet flange should sit flush on the floor all the way around.
Serves the dual purpose of supporting the toilet and connection it to not only the floor but also the plumbing.
Wax ring this secures the flange to the base of the toilet.
If the previous flange is too low purchase one that is designed to sit on the finished floor and provide the optimum toilet flange height.