adding a tub and drain on slab

I'm currently working on a bathroom remodel in which I'm adding a tub and 2" drain line. Construction is slab on grade. I've cut, broken up, and removed the concrete where the new drain line will run. My question concerns how to tie the new tub drain line into an existing 2" shower drain. The tub waste and overflow will be about 10 feet from the shower drain.
Is it acceptable to add a sanitary tee above the shower trap and bring the tub drain line into the branch of the tee with the shower riser coming up vertically out of the inlet of the tee? If this is acceptable, would the tub still need a trap and vent?
If this is isn't a valid approach, can I tie the tub drain in downstream of the shower's trap? I would then add a trap at the tub's waste and overflow and would vent the trap, correct? Thank you very much for your help on this issue.
stevei
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Consult a plumber locally. I think you have forgotten about the vent. 10 feet seems to far to me, I aint no plumber either.
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I read your description and it's so tightly written that I realize I haven't had enough caffeine to follow.
The other reply I've heard is an issue (I ain't no plumber), 10' may be a magical cutoff number on drains. Check the code somehow, you don't want to do all that and have it found to be effed up on resale. You need a vent, somewhere. Your locale may permit self-venting or whatever they call those weird plastic fixtures that allow air in when the tub is draining, then close when not needed.
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snipped-for-privacy@yahoo.com wrote:

In this case it might be a good to get a consultation with the local building dept. and subsequent permit.
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