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How to replace a bathtub

March 26, 2010 at 10:23 am | Category: Remodeling Contractor



Removing the Old Tub
Step 1
Remove the access wall or paneling to access the piping of the bathtub. If the plumbing is not accessible in this manner, you will need to remove a section of wall to get at the plumbing.
Step 2
Turn the main water supply off before proceeding further.
Step 3
Disconnect the drain pipe to the tub with an adjustable wrench . You will also want to loosen the slip nut that connects the overflow pipe and if need be the tub strainer. This should release the drain pipe below the strainer.
Step 4
Remove the hot and cold water faucets from the tub side and work back to the supply line.
Step 5
Detach the wall covering around the tub. If there is tile around the enclosure, you will only need to remove one row to accomplish the removal. Using a cold chisel and hammer will be a great aid to accomplish this. Otherwise, remove about 4 inches of material around the tub to expose the clips and provide access to them.
Step 6
Use a pry bar and a little scrap wood for protection and pry around the edge of the tub unit to move it away from the wall. If you meet any resistance, it could be because you are not totally disconnected from the water system or drain. Recheck these connections and try once more to move the tub. You will likely need a helper to do this.
Step 7
Remove the tub enclosure and place on 1 by 4 skids to help slide the unit. If you cannot remove the tub in this fashion, use a Sawzall to make two cuts in the tub unit across the width of the tub. You can now remove the three pieces from the bathroom and dispose of them.

Installing a New Tub
Step 1
Bring the new tub unit into the bathroom. If you had to cut the old tub to remove it, you need to remove either the wall opposite the faucet connections or the inside wall of the tub unit to permit the positioning of the tub.
Step 2
Check the backboard of the tub to see if any of the cement backer board needs to be replaced to position and support the edge of the unit. Normal drywall will not withstand the extreme moisture of this location and will degrade and fail at some point.
Step 3
Move the new unit into position and align the plumbing and drain pipes accordingly. Use shims to stop any rocking motion that may exist from non-level surfaces. Then install the hangers to secure the tub unit after the leveling has been finished.
Step 4
Connect the drain and water supply piping to the new unit. Make sure you adjust the drain plug to seal when the stopper is activated to hold water in the tub. Reposition the taps on the tub side of the wall for the hot and cold faucets.
Step 5
Measure the distance from the drain nipple to the face of the wall. Now measure from the threaded coupling inside the spout to the edge of the spout and add 1/2 to 5/8 inches. If the spout is too long or deep to be able to screw on the threads you need to modify the nipple and increase its length.
Step 6
Recheck each connection that you made and then turn on the water supply and check for leaks. If you find leaks, repair them and then recheck.
Step 7
Finish the wall around the tub and the job is complete. You will have to paint or place tile to finish the enclosure. Don’t forget to run a bead of silicon sealer around all edges of the tub enclosure and joint to the walls.


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