Install and Secure Drain Body — Remove PVC/ABS Flange
Part of project
How to Remove an Old Toilet Flange · Step 5 of 7
In this video
Take the main drain body assembly and apply the appropriate solvent cement (for ABS or PVC) to the inside of the fitting and the outside of the cut drain pipe. Firmly press the drain body onto the pipe, ensuring its top flange sits level with the surrounding concrete floor. Once in place, secure the flange to the concrete using appropriate concrete screws inserted through the pre-drilled holes in the flange.
Goal: Attach drain body to pipe and floor
- A test plug is included to allow for pressure testing the drain system before the tub is installed.
- Screws for mounting the flange are sold separately.
Used in this video
- Drill (Tool Type: Power Tools) — Driving screws into the concrete floor to secure the drain flange.
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FAQs
How difficult is it to remove an old toilet flange, and how long should I expect it to take?
Removing an old toilet flange is generally considered an intermediate-difficulty DIY project. Expect it to take 2-4 hours, though this can vary significantly based on your experience, the flange material (cast iron is more challenging), and how easily the old fasteners come out. Patience and the right tools are key.
What are the essential safety precautions I need to take when removing a toilet flange?
Safety is paramount for this project. Always wear safety glasses and work gloves to protect against debris and sharp edges. Ensure the water supply is shut off and the toilet is completely drained before beginning. If working with cast iron, be cautious of flying fragments and use appropriate hearing protection when chiseling.
Do I absolutely need specialized tools like an inside pipe cutter or a cold chisel and sledgehammer for this project?
Yes, for PVC/ABS flanges, an inside pipe cutter (like The Plumber's Choice 1242R) is highly recommended to make a clean, safe cut without damaging the main drain pipe. For cast iron flanges, a cold chisel (e.g., Dasco Pro G419) and sledgehammer (like Estwing MRF3LB) are often necessary to break the brittle material without damaging the subfloor or surrounding pipe.
What's the most common mistake DIYers make when removing a toilet flange, and how can I avoid damaging the drain pipe?
The most common and costly mistake is damaging the drain pipe itself while removing the flange. To avoid this, always exercise caution and precision. When cutting PVC/ABS, ensure the inside pipe cutter is properly adjusted to cut only the flange. When breaking cast iron, direct your force carefully with the chisel to fracture the flange, not the underlying pipe or subfloor.
Install and Secure Drain Body — Remove PVC/ABS Flange
Part of project
How to Remove an Old Toilet Flange · Step 5 of 7
In this video
Take the main drain body assembly and apply the appropriate solvent cement (for ABS or PVC) to the inside of the fitting and the outside of the cut drain pipe. Firmly press the drain body onto the pipe, ensuring its top flange sits level with the surrounding concrete floor. Once in place, secure the flange to the concrete using appropriate concrete screws inserted through the pre-drilled holes in the flange.
Goal: Attach drain body to pipe and floor
- A test plug is included to allow for pressure testing the drain system before the tub is installed.
- Screws for mounting the flange are sold separately.
Used in this video
- Drill (Tool Type: Power Tools) — Driving screws into the concrete floor to secure the drain flange.
Frequently Asked Questions
How difficult is it to remove an old toilet flange, and how long should I expect it to take?
Removing an old toilet flange is generally considered an intermediate-difficulty DIY project. Expect it to take 2-4 hours, though this can vary significantly based on your experience, the flange material (cast iron is more challenging), and how easily the old fasteners come out. Patience and the right tools are key.
What are the essential safety precautions I need to take when removing a toilet flange?
Safety is paramount for this project. Always wear safety glasses and work gloves to protect against debris and sharp edges. Ensure the water supply is shut off and the toilet is completely drained before beginning. If working with cast iron, be cautious of flying fragments and use appropriate hearing protection when chiseling.
Do I absolutely need specialized tools like an inside pipe cutter or a cold chisel and sledgehammer for this project?
Yes, for PVC/ABS flanges, an inside pipe cutter (like The Plumber's Choice 1242R) is highly recommended to make a clean, safe cut without damaging the main drain pipe. For cast iron flanges, a cold chisel (e.g., Dasco Pro G419) and sledgehammer (like Estwing MRF3LB) are often necessary to break the brittle material without damaging the subfloor or surrounding pipe.
What's the most common mistake DIYers make when removing a toilet flange, and how can I avoid damaging the drain pipe?
The most common and costly mistake is damaging the drain pipe itself while removing the flange. To avoid this, always exercise caution and precision. When cutting PVC/ABS, ensure the inside pipe cutter is properly adjusted to cut only the flange. When breaking cast iron, direct your force carefully with the chisel to fracture the flange, not the underlying pipe or subfloor.