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redline 08-18-2006 08:36 PM

tub drain maximum distance
What is the maximum distance the bathroom tube drain can be from the 4" main sewer stack?
If a 2" drain line is used?
If a 1-1/2" drain line is used?


Ron The Plumber 08-18-2006 10:25 PM

Unlimited providing there is 1/4" per foot of grade for both sizes.

redline 08-19-2006 07:47 AM

Thanks for settling a difference of opinion.
A friend believed that the drain line could not be any longer then 5 feet.
I tried to tell him it would be fine as long as the 1/4" was maintained.

He wants to locate the whirlpool in a different location. About 2 feet away from the current one.

Ron The Plumber 08-19-2006 08:20 AM

Now if your talking distance to vent then there is a difference. Is this might be what he was asking?

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