Re: installing new toliet, how many on a 3" line?
Posted by Gary on October 10, 19100 at 21:31:16:
In response to Re: installing new toliet, how many on a 3" line?
: : how many units can i run off a 3" drain pipe?

: Three toilets can be used on a three inch line. When the fourth toilet is added, the pipe needs to be sized at four inches.


If your in the southeast part of the states, that's 2 water closets on a 3inch and 3 WC on a 4inch. That's a horizonal drain, different for vertical.



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