A DIY Bathtub Installation Manual
Changing your bathtub can seem like a daunting task, however with the right tools and an understanding of the plumbing set-up, it can be accomplished in as little as a day. Whether you want to change your bathtub to update aesthetics or are running into an issue with your old tub, this guide will serve as a resource for the task at hand. This manual assumes that you have removed the old tub already and that you have the existing set-up for the tub. It is preferable to have more than one person to help lift and place the tub correctly.
- Adjustable Wrench
- Safety Glasses
- Screwdrivers (both Phillips and flathead)
- Overflow pipe
- Yardstick/meter stick
- Plumber’s Putty
Step 1. Measuring the new tub
Using a yardstick or meter stick, you need to measure the space for your tub and the dimensions of your new tub. This will make the entire installation process easier when you know there will be a good fit. As you measure the space, note the drain configuration and purchase a new tub with the same side drain.
Step 2. Turn off the water and reduce pressure
The water sent through the plumbing needs to be turned off. Depending on your location, the bathroom could have its’ own water valve or it could be part of the entire water system. You may need to use the adjustable wrench in order to turn the water off completely.
Step 3. Check for mold and install necessary cement backer
With the old tub out of the way, it is a good time to check for any mold or rotting drywall. If you notice any drywall, fix this with the proper application of cement backer to prevent mold growth.
Step 4. Installing a ledger board
Use a pencil in order to mark where the ledger board needs to go. This tub is place between the edge of the tub and the walls to prevent damage to the walls and support the tub.
Step 5. Connecting the drain and water supply
In order to have the water that flows through the plumbing connect to your tub, the drain needs to be properly installed. To properly connect the drain, make sure that the pipes are dry. You may need to use a hammer or screwdriver in order to ensure a tight fit. The tub needs to be on its’ side for this step. From this angle, you should be able to see where the drain and water supply pipes need to be connected. The wrench can be used to ensure a tight fit.
Step 6. Install the overflow pipe
The overflow pipe is installed on the side of the tub. Make sure to screw this on when the tub is on its side. If necessary, apply plumber’s putty to the overflow pipe. The plumber’s putty needs to go around the drain flange.
Step 7. Place the tub in the right location
Make sure that the tub is lined up with where it needs to sit in the bathroom. It is easier to position the tub before it is placed, than readjust it once it is in the tub. If necessary, you will need to place mortar on the floor before it is placed. You may need help for this step.
Step 8. Check for the straightness of the tub
Once the tub is in place, it is important to make sure it is completely level. If the tub is sloped one way or the other, it will prevent adequate flowing of the water.
Step 9. Connecting drain to tub
The drain is connected to the proper plumbing pipes in step 5. Now it needs to be attached to the tub. The overflow pipe should also be connected and screwed in securely.
Step 10. Install any desired faucets and water features
This could include the faucet, overflow check, showerhead, or other features. This is a good time to switch your showerhead if you are interested in replacing your old showerhead.
Step 11. Turn the water back on and check for leaks
Turn the water back on and check for any possible leaks or uneven flows of water.
This concludes the tutorial for how to install a tub. We hope this will be helpful to you.