Replace Toilet Flange On Slab Floor

The flange must sit on top of the finished floor and be anchored to it if you want your toilet to sit properly and be able to seal.

Replace toilet flange on slab floor. When replacing a toilet it s fairly common to discover that the existing toilet flange will not work for the new toilet. Discard in a trash bag. To replace a toilet flange lay newspaper down on the floor around the toilet and turn off the water to the toilet before flushing and siphoning all of the water out of the bowl. It may help to get a better grip by holding the bowl by the inside rim instead of the outer.

Here at our wall street apartments. Yesterday while making my rounds a tenant in one of the apartments approached me and mentioned their toilet was loose. Slip the repair flange spanner under the broken toilet flange but put one of the toilet bolts through the hole in the spanner first in order. Toilet flanges are actually supposed to sit on top of the finished floor although few plumbers will take the trouble to make the necessary spacers at rough in.

Remove the broken area from the flange to be repaired using a hacksaw. For a thin 1 4 5 16 in tile finish this is not a problem. When the subfloor is concrete as is often the case with basement bathrooms or other slab foundation situations replacing the flange is no easy matter since it can be quite hard to drill holes in concrete to secure the new flange. Another alternative is to just drill a hole in the concrete and install a hanger bolt at the proper location.

Place the toilet bowl atop the new flange aligning the bolt holes in the base of the bowl with the bolts in the flange. 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.