How to Repair a Cast Iron Toilet Flange
It is easy to repair a toilet flange that is made of cast iron. Follow the simple steps below to effectively fix your toilet flange.
Step 1: Prepare the Toilet Tank
Use pliers to shut off the main water valve of your toilet. Remove all the excess water using a shop vacuum. Unscrew the cap covers, and use the crescent wrench to remove the bolt nuts. Pull the toilet flange off its base and set aside.
Step 2: Clean the Flange
Clean the cast iron flange using a toothbrush dipped on a solution of kitchen cleaner and water. Use a a putty knife to remove any plumber’s putty as well. Check the flange for any broker pieces and remove accordingly.
Step 3: Spanner Flange Assembly
Insert a closet bolt into the hole located at the center of the spanner flange. Secure by adding a bolt washer. Insert the spanner flange assembly into the toilet flange with the new closet bolt aligned with the original closet bolt.
Step 4: Finish Up
Adjust the toilet shims accordingly. Turn on the main water valve. Try flushing the toilet while checking if there are any leaks.