Relocating shower drain

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mississippi150

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bathroom 2.jpg

I am renovating my bathroom. The old bathtub drain is (2). I want to move that drain to (1) for a better location for the shower. The question is: what do I have to do?

The old drain has a P trap and then goes directly into that vertical pipe below the slab. I assume this is a wet drain.

The distance from (2-old drain) to (3-vertical pipe) is about 30 inches. The distance from (1-new drain) to (3-vertical pipe) is about 72 inches.

--Can I just connect the new drain to the old drain pipe (assuming proper slope) and have it be ok? Or is the 6 foot distance too far to use the wet vent?

--I'm assuming that I can use that pipe for drainage, no problem. It's the venting that I'm worried about. If I can't just connect the pipes because 6 feet is too long, how else do I vent this?

This is a load bearing wall, I believe. I only mention that because that limits the defects I can create in the studs.
bathroom 2.jpg
 

Jeff H Young

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keep your fall to 1/4 inch perfoot and go for it no problem on your current venting 2 inch drain?
 

Jeff H Young

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I know 2 inch works correctly I thought it might had been a 1 1/2" so you are all good !
 
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