Tuesday, January 26, 2010

How to move a tub drain

How to move a tub drain:

1. Determine what you have and what you need. Tub drains usually are 1 1/2" in diameter of PVC piping. Usually, tub drains are fitted using a screw on adapter. Whenever I change a tub, I always change out the drain connections too. Let's start by removing any adapters and expose the top of actual 1 1/2" pipe.

2. Expose enough pipe to fit to the new position. Exposing pipe consists of moving away the surrounding material around the pipe in order to freely move or replace the existing pipe. Pipes are usually embedded in dirt, wood space, cement, a hole in the floor surrounded by concrete. These are usually determined by the position of the drain. If the drain is on the second floor of a townhouse, they are typically exposed in a wood space between floors. Condo's, however, usually have them in a hole in the floor surrounded by solid concrete with rebar throughout.

3. Determine where the new drain needs to be. Tubs usually come with rough in specs. If so, just follow the measurements provided in the specs. The important measurements to look for are the depth from the wall behind and on the side of the drain. If there are no specs, you need to rely on the measurements you take off the new tub.

4. Move the drain. Moving a drain can be quite difficult. It may help to know that a drain may not have to be moved if you can just put a 90 degree bend on the existing drain pipe and leading it to another 90 degree bend upward where the new drain can atttach. The tougher alternative is to remove the drain below the p-trap. Keep in mind, Fernco's used and seen by inspectors may require you to have an access panel for the drain. Fernco's are simply easier to install hard to reach drains. You may find yourself using the angle grinder a lot to cut the pipe down to fit the new location.

5. Test the drain for leaks
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