Every plumber knows this moment: pull up an old toilet, and the flange is rusted, cracked, or buried below the new tile. The “proper” fix involves breaking concrete. The smart fix usually doesn’t.
Flange too low? Don’t stack wax rings. I see this constantly. Stacked rings squish unevenly and leak. Use a flange spacer kit — plastic rings that stack on the existing flange. Cost: 8 bucks. Time: 30 minutes.
Metal ring cracked but plastic body fine? Stainless steel repair ring. Sits over the damaged flange, gives you new bolt slots. Works on cast iron and plastic. Ten minutes.
Flange above the floor? This one sucks. The toilet won’t sit flat. Either grind the flange down (risky near porcelain) or raise the floor around it. Neither is fun.
When replacement is unavoidable: Use a compression-fit Push-Tite flange. No glue, no waiting. The rubber gasket expands when tightened. Game changer for DIYers.