How To Replace Your Old, Rusty Cast Iron Toilet Flange With Pvc In Just 3 Easy Steps!
What To Know
- Replacing a cast iron toilet flange with a PVC one is a relatively straightforward plumbing task that can be completed in a few hours.
- Apply a toilet wax ring to the bottom of the toilet and carefully set it over the PVC flange.
- If the flange is severely rusted or damaged, it may need to be replaced with a new cast iron flange before installing the PVC flange.
Replacing a cast iron toilet flange with a PVC one is a relatively straightforward plumbing task that can be completed in a few hours. By following these step-by-step instructions, you can ensure a leak-free and secure toilet installation.
Materials You’ll Need
- New PVC toilet flange
- Toilet wax ring
- Plumber’s putty
- Hacksaw or reciprocating saw
- Pry bar
- Drill
- 1/4-inch masonry bit
- Screwdriver
- Measuring tape
- Pencil
- Utility knife
- Safety glasses
Step-by-Step Instructions
1. Safety First
Before starting any work, put on safety glasses to protect your eyes.
2. Remove the Old Toilet
Turn off the water supply to the toilet and flush the toilet to empty the tank. Disconnect the water supply line and remove the nuts holding the toilet to the floor. Carefully lift the toilet straight up and set it aside.
3. Remove the Cast Iron Flange
Use a hacksaw or reciprocating saw to cut the cast iron flange flush with the floor. Be careful not to damage the floor. If the flange is secured with bolts, use a pry bar to loosen and remove them.
4. Clean the Floor
Use a utility knife to scrape away any old wax or debris from the floor around the flange opening. Clean the area thoroughly with a damp cloth.
5. Install the PVC Flange
Place the new PVC flange over the flange opening and trace around the outer edge with a pencil. Remove the PVC flange and apply a bead of plumber’s putty around the traced circle. Place the PVC flange back over the opening and press it down firmly.
6. Secure the PVC Flange
Drill four 1/4-inch holes through the PVC flange and into the floor. Insert screws into the holes and tighten them until the flange is secure.
7. Install the Toilet
Apply a toilet wax ring to the bottom of the toilet and carefully set it over the PVC flange. Reconnect the water supply line and tighten the nuts. Turn on the water supply and check for leaks.
Tips for Success
- Use a sharp hacksaw or reciprocating saw blade to ensure a clean cut.
- Apply plumber’s putty liberally to prevent leaks.
- Tighten the screws securely, but do not overtighten.
- If you encounter any difficulties, do not hesitate to contact a licensed plumber for assistance.
The Bottom Line: A Secure and Leak-Free Toilet Installation
By following these instructions, you can successfully replace a cast iron toilet flange with a PVC one. This simple yet effective upgrade will provide a secure and leak-free base for your toilet for years to come.
Information You Need to Know
Q: Can I use a different type of flange besides PVC?
A: Yes, you can use a stainless steel or brass flange instead of PVC. However, PVC is the most common and cost-effective option.
Q: What if the cast iron flange is rusted or damaged?
A: If the flange is severely rusted or damaged, it may need to be replaced with a new cast iron flange before installing the PVC flange.
Q: How often should I replace the toilet flange?
A: The toilet flange should be replaced whenever it becomes damaged or if you are experiencing leaks around the base of the toilet.
