When you are replacing a toilet or resetting an existing toilet after a repair, there are a few key things to check to ensure a good seal and prevent leaks. This turns your toilet water into a gel and prevents the water from spilling on your floor. 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. Toilet Flange Is Too Low In the ideal installation, the outer edge of the toilet flange rests directly on a finished flooring surface that butts right up to the edges of the drain opening. Extenders can be used to raise the height of the flange. The optimum toilet flange height is approximately ¼ inch above the floor to achieve the best seal and overall fit. Meaning the bottom edge of the flange needs to be on the same plane as the toilet. Drain flanges and toilets are configured so that this allows just the right amount of space for the wax ring to fit between the toilet flange and the toilet. Had an old 4 bolt toilet. Purchase A New One. 3 years ago. If a new floor has been installed in your bathroom, then it will often mean that the flange is too low in the floor. Example of the type of flange I am referring to: I have read conflicting information - some statements that the top of the flange should be flush with the finished floor, others that the bottom of the flange should rest on the finished surface. The bottom of the flange is 1 1/2″ above the joist. That is NOW being replaced because the HO was demo the old floor and got too close to the toilet before I removed it. If the flange is too low you will surely have a leaking toilet. Possibly these are not really contradictory but depend on the circumstance. If the flange is too long or too short, then it can cause the toilet to leak. The old toilet was set with what appears to be dried up plumbers puddy and there was a lot under the flang also. Experts will tell you that the perfect height for a toilet flange is to be level with the floor. Built around 1970. A toilet flange should be flush off the bathroom floor or a ¼ inch above it. The toilet flange needs to be on top of the finished floor. When your toilet flange is unlevel or not set to the right height, the toilet may wobble or even leak at the base. 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. Toilet flange repair is one of those things…you don’t know you need it until you see a leak or see the flange when replacing a toilet. This way, the toilet is able to press strongly on the wax ring to form a tight seal. To eliminate these issues, it’s important to ensure your flange is set to the right height, and if it’s broke or damaged in any way, you’ll also want to replace it. Some people opt to … Ideal Height of a Toilet Flange. So if your toilet sits on the tile, the flange needs to be on top of the tile too. You also want to make sure the toilet sits level and does not rock on the floor, as this can compromise the seal. Should I caulk around toilet flange? If your flange is loose or deteriorating, it can leak and erode the surrounding flooring, causing significant damage over time. The toilet flange needs to be the correct length so that the toilet can be secured properly. One of my favorite supplies, when removing toilets, is Oatey LiquiLock. It should also be level and stable. Toilet Flange Extender. Since the toilet flange sits on a subfloor, I would install a flange extension. Wax ring to form a tight seal a tight seal is NOW being replaced because the was... 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