How to re-route drain pipe before installing a new vanity cab?

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Old 08-08-16, 12:03 PM
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How to re-route drain pipe before installing a new vanity cab?

Hi,

I am replacing the cab in one of my bathes. Please check the pics.

The old one had a width of 24" and the new about 30". So I need to modify the drain pipe in order to fit the new cab.

Thinking about 2 approaches: 1) cutting off the pipe right after coming out of the wall; then remove part of the inside of the pipe by a special tool found in Youtube, so the inner diameter of the pipe got expanded to fit a new elbow;
2) taking a rubber elbow big enough to connect the drain pipe with hose clamps.

What do you think, guys?

Thanks in advance.
 
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Old 08-08-16, 02:28 PM
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The easiest would be to cut the pipe after the elbow, leaving at least 3/4".
You can attach a trap or another elbow there and then a trap.

If that doesn't work, I would cut open the wall and replace the tee using no-hub couplers.

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Old 08-09-16, 04:21 PM
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Thanks. But don't you think it's too far out with more than one elbow and trap? Just curious.
 
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Old 08-10-16, 05:43 AM
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Vanity

With a width difference of 6 inches, the drain difference will be 3 inches if the additional with is added to one side rather than being centered. Seems to me you could adjust the trap to handle this difference.
 
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