Is your old bathtub an eyesore, or are you dreaming of a modern upgrade? Maybe you’re facing a tub that’s simply past its prime. Removing and installing a bathtub might seem like a monumental task, but with the right preparation, tools, and a detailed guide, it’s a manageable DIY project. This comprehensive guide will lead you through every step, from initial prep to enjoying a relaxing soak in your new tub. Let’s get started and transform your bathroom!
- Preparing for Your Bathtub Removal: Essential First Steps
- Disconnecting the Drain: Accessing the Plumbing
- Cutting the Drywall: Creating Access for Removal
- Removing the Old Bathtub: The Demolition Phase
- Preparing for the New Bathtub Installation: Laying the Foundation
- Installing the New Bathtub: Putting It All Together
- Finishing Touches: Completing Your Bathroom Upgrade
- Conclusion: Enjoy Your Newly Renovated Bathroom
- FAQ
Preparing for Your Bathtub Removal: Essential First Steps
Before you start demolition, thorough preparation is crucial. This ensures a smoother, safer process and helps avoid costly mistakes.
Shutting Off the Water Supply: A Must-Do
Your first step is to completely shut off the water supply to the tub. If your bathroom has a separate shut-off valve for the tub, use that. If not, you’ll need to shut off the main water supply to your entire house. Once the water is off, open a faucet at a lower level in your home to relieve any pressure remaining in the pipes. This step is absolutely critical to prevent water from gushing out when you disconnect the plumbing.
Removing the Drain Assembly: Step-by-Step
Tub drains have several interconnected components that need to be carefully removed before you can take out the tub. Begin by removing the stopper, which is typically unscrewed or lifted out. This will give you access to the drain flange at the bottom of the tub. You’ll need a specialized tub drain removal tool to unscrew the flange itself.
Detaching the Waste and Overflow Valve Cover: An Easy Unscrew
Next, use a screwdriver to disconnect and remove the waste and overflow valve cover located on the side of the tub. This cover is usually held in place by one or two screws. Set these aside in a safe place.
Removing the Tub Spout: Twist or Unscrew
It’s essential to remove the tub spout before cutting the drywall as it is often attached to the wall. Some spouts have a small set screw that holds them in place; if you don’t see one, your spout should twist off by turning it counterclockwise.
Disconnecting the Drain: Accessing the Plumbing
To fully disconnect the drain, you’ll need access to the plumbing underneath the tub, either from behind an access panel, through a crawl space, or from the ceiling below the bathroom. Using channel-lock pliers, carefully disconnect the pipes below the tee where the drain and overflow valve meet. If your fittings are galvanized steel, you might need a penetrating lubricant like PB Blaster to help loosen the joints. Once the nut connecting the drain pipe is loose, unscrew it by hand and lift out the entire section.
Cutting the Drywall: Creating Access for Removal
To make the process of repairing the wall simpler, you’ll need to cut a section of drywall out, approximately six inches above the tub on all three sides. Using a measuring tape, mark a consistent distance above the tub and use a straightedge to draw a guideline around the perimeter. Cut along this line with a drywall saw, removing the drywall section between the line and the top of the tub down to the studs. Remove the drywall on the sides of the tub as well, exposing the tub flange. Once everything is cleared, you should have direct access to the screws or nails attaching the tub flange to the studs.
Removing the Old Bathtub: The Demolition Phase
With the surrounding area cleared, you’re now ready to remove the old bathtub.
Detaching the Tub Flange: Using a Pry Bar
With a pry bar, carefully remove all screws or nails that secure the tub flange to the studs around the top and sides of the tub. Before lifting the tub, remove any trim molding from the sides of the alcove, and use a utility knife to cut away any caulk between the tub and the floor.
Lifting and Sliding Out the Tub: Teamwork Makes the Dream Work
You’ll definitely need a helper for this next step. One of you will carefully lift the front edge of the tub while the other slides a couple of 1x4s underneath to get it off the floor. Use the 1x4s as skids to slide the tub out of the alcove. Finally, remove any remaining stringer supports attached to the wall. Now that the alcove is exposed, clean the area and remove any nails or debris left behind.
Disposing of the Old Tub: Considerations for Different Materials
How you dispose of your old tub will depend on its material. Cast-iron tubs are incredibly heavy and should be carefully broken into smaller, manageable pieces using a sledgehammer. Do this directly in the bathroom to minimize moving heavy sections. Always wear safety glasses and ear protection. Steel, composite, or fiberglass tubs are relatively lightweight and can be removed whole with help. Alternatively, they can be cut up using a reciprocating saw. Porcelain-over-steel tubs should ideally be disposed of whole. Contact your local sanitation company for specific guidelines on disposing of your tub; there may be additional fees or restrictions.
Preparing for the New Bathtub Installation: Laying the Foundation
Before installing your new bathtub, take these vital preparatory steps.
Measuring the Alcove: Ensuring a Perfect Fit
Measure the width and depth of your alcove. Most standard bathtubs are five feet long and either 30 or 32 inches wide. They also come in left or right drain configurations. When facing the alcove, if the drain is on the left side, you’ll need to purchase a left drain tub; if it’s on the right, a right drain tub is required.
Checking and Relocating Plumbing: Ensuring Proper Connections
If the new tub has a different size or drain orientation than your old one, you’ll likely need to relocate the rough-in plumbing. Otherwise, ensure the existing plumbing is in good condition and replace any worn-out components before installation. It is also essential to make sure the subfloor is level. If not, apply a self-leveling compound to create a level surface. Remember, a level, plumb, and square space is key for a successful installation.
Preparing the New Tub: Protecting Your Investment
Because the porcelain can easily chip or crack, keep the new tub safely packaged until you’re ready to install it. Cut out a section of the cardboard packaging to set inside the tub to protect the surface from scratches and dropped tools. Remove the rest of the cardboard packaging, and carefully inspect the tub for any damage. Report any damage to the manufacturer immediately. Cut a strip of cardboard and tape it to the exposed side of the porcelain to protect it further.
Installing the New Bathtub: Putting It All Together
Now, the moment you’ve been waiting for – installing your new bathtub.
Setting the Tub in Place: Careful Maneuvering
Many tubs have a sound-deadening and leveling pad on the underside. This pad needs to rest fully on the subfloor. With your helper, carefully set the tub onto the skids and slide it into position in the alcove. Check to see if the tub is level; if necessary, use shims to even it out. Take a pencil and mark a reference line on the studs along all three sides of the tub. Now, take the tub out and set it aside.
Installing the Stringer: Providing Essential Support
A stringer is a support piece that will sit below the tub flange on the long side of the wall. Since you’ve already marked the top edge of the flange on the studs, you’ll need to account for the height of the flange when you install the stringer. Measure that same distance below the reference line on each stud. This new mark will be the top edge of the stringer you’ll install. Cut a two-by-four to the length of your tub and use deck screws to attach it to the studs on the new reference marks.
Installing the Drain and Overflow Valve: Ensuring Watertight Connections
Turn the tub on its side and install the drain according to the manufacturer’s instructions. Take a bit of plumber’s putty, roll it into a rope, and place it on the underside of the drain flange. Position the drain shoe on the underside of the tub and screw the drain flange into the threads. Tighten it completely using the drain tool and remove any excess putty. To connect the overflow valve, place the rubber gasket onto the overflow elbow and position it behind the tub. Attach the cover plate inside the tub to the overflow elbow and gasket behind the tub. Connect the overflow pipe and drain pipe with a tee where the two meet. Finally, install the drain strainer onto the flange.
Setting the Tub and Connecting Plumbing: Final Placement
Carefully move the tub back into place, ensuring you don’t disturb the drain assembly. Once in position, the flange should rest on the stringer you installed along the back wall. Make sure the drain and overflow plumbing coming out of your tub are aligned with the rough-in drain outlet in your bathroom. Connect the pipes and tighten them snugly, but avoid over-tightening.
Securing the Tub Flange: Creating a Solid Foundation
Ensure the top of the flange lines up with the reference marks you established earlier. Attach the tub flange to the studs using roofing nails. Do not drill the flange; instead, use the head of the fastener to hold the flange down. Secure the flange on all three walls and the sides of the tub.
Finishing Touches: Completing Your Bathroom Upgrade
With the tub in place, it’s time for the finishing touches. Finish off the wall with new drywall and paint. Reinstall the baseboard and finish molding around and in front of the tub. Finally, reattach the spout, and your new bathtub installation is complete.
Conclusion: Enjoy Your Newly Renovated Bathroom
Removing and installing a bathtub is a significant undertaking, but by carefully following these steps, you can achieve a successful outcome and transform your bathroom. Remember to take your time, be patient, and don’t hesitate to ask for help when needed. Enjoy your new bathtub and the satisfaction of a job well done!
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FAQ
- Do I need special tools to remove a bathtub drain? Yes, a tub drain removal tool is highly recommended. It provides a secure grip on the drain flange.
- Can I remove a cast-iron tub by myself? No, it’s not recommended. Cast-iron tubs are extremely heavy and should be broken into smaller pieces for removal. This process requires at least one helper and protective gear.
- What’s the best way to level a tub? Use shims under the tub’s base until it is level in all directions.
- How do I know if my subfloor is level? Use a level to check the subfloor. If needed, apply a leveling compound to even out any irregularities.
- What is a tub stringer? A stringer is a horizontal support attached to the studs below the tub flange. It helps to support the weight of the tub.
- Why do I need to cut out drywall above the tub? Cutting the drywall provides easy access to the tub flange for removal and installation. It also simplifies the patching process.
- What is plumber’s putty used for? Plumber’s putty creates a watertight seal around the drain flange, preventing leaks.
- Can I use screws to attach the tub flange? It’s recommended to use roofing nails to secure the flange. Screws can over-tighten and damage the flange.
- How do I dispose of a porcelain-over-steel tub? Porcelain-over-steel tubs should be disposed of whole. Check with your local sanitation company for specific guidelines.
- How do I choose the right tub size and drain orientation? Measure the width and depth of your alcove. When facing the alcove, if the drain opening is on the left, you need a left-drain tub; if it’s on the right, you need a right-drain tub.