Re: Gravity Drain
Posted by dale's plumbing service on February 28, 1999 at 13:32:16:
In response to Re: Gravity Drain
: I am installing a toilet in a basement and can easily get aboe the drain line but need to know the general rate of decline that is neccessary for proper flow.
: Thanks,

the upc code states that any line 3" or less must be 1/4" per foot or 2%. a 4" line if needed can be 1/8" per ft. you only need a 3" line for 1 stool.Dale


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