Moving a bathtub drain requires plumbing skills and may involve modifications to the bathtub structure. If you are not comfortable working with plumbing systems, it's best to consult a professional plumber for assistance. If you choose to proceed with the task yourself, follow these steps:
Tools and Materials:
- Hacksaw
- Pliers
- Adjustable wrench
- Measuring tape
- Pencil
- Tubing cutter
- PVC pipe (to extend the drain line if necessary)
- PVC fittings (couplers, elbows)
- Solvent cement
- Rubber gasket
- Tub drain flange
- Plumber's putty
- Silicone caulk
Step 1: Determine the New Drain Location
Using a measuring tape, determine where you want to move the bathtub drain. Usually, it's preferable to place it closer to the center of the tub for better water drainage. Mark the new location with a pencil.
Step 2: Access the Drain Assembly
If your tub has a removable overflow plate or access panel, this will provide access to the drain assembly. If there's no access, you may need to cut a hole in the bathtub skirt to reach the drain.
Step 3: Disconnect Existing Drain
Use an adjustable wrench to loosen and remove the coupling nuts connecting the drain pipe to the bathtub drain flange. Carefully detach the drain pipe from the flange.
Step 4: Cut the Drain Pipe
Use a hacksaw or tubing cutter to cut the drain pipe where you've marked the new drain location. Ensure that you cut at a right angle to avoid leaking issues later.
Step 5: Install New Drain Flange
Position the new drain flange with a rubber gasket at the desired location and tighten the mounting nuts. Apply a bead of plumber's putty or sealant under the flange to prevent water leakage.
Step 6: Extend Drain Pipe (If Needed)
If the cut drain pipe is too short to reach the new drain flange, you'll need to add an extension. Connect the necessary PVC pipe sections using couplings and elbows to extend the drain. Ensure a tight and leak-free fit.
Step 7: Connect Drain to New Flange
Slide the other end of the extended drain pipe onto the newly installed drain flange. Tighten the coupling nuts to secure the connection.
Step 8: Test the Drain
Run some water into the bathtub to test the drain. Check for leaks around the new drain flange and any connections. If there are no leaks, you can proceed to the next step.
Step 9: Apply Silicone Caulk
To ensure long-term waterproofing, apply a bead of silicone caulk around the drain flange where it meets the bathtub surface. This will help prevent water from seeping into the gap and causing damage.
Step 10: Attach Overflow Plate (If Applicable)
If your bathtub has an overflow plate, carefully attach it back to the bathtub using the provided screws. Ensure a tight fit to avoid water overflow from the tub.
Note: For bathtubs with integral overflow drains (where the drain is part of the tub material), moving the drain may be more challenging. In such cases, it's best to consult a professional plumber for the work.