2579
ANNE ARUNDEL COUNTY

X 4" TEE-WYE, OF TO ABOVE THE CENTER LINE OF A THREE
INCH (3") HORIZONTAL DRAIN BY MEANS OF A 3" X 4" WYE
SHALL BE ACCEPTABLE; PROVIDED THAT THE FOUR INCH (4")
DRAIN SHALL NOT RECEIVE THE DISCHARGE OF ANY STACK AND
THAT IT SHALL RECEIVE ONLY THE DISCHARGE OF FIXTURES
LOCATED ON THE FLOOR OR WALL IMMEDIATELY ABOVE THE
FOUR INCH (4") DRAIN. ALL SUCH FOUR INCH (4")
HORIZONTAL DRAIN LINES SHALL BE SIZED, GRADED, AND
VENTED AS IF THE FOUR INCH (4") DRAIN WERE A THREE
INCH (3") HORIZONTAL DRAIN."

(14) "SECTION 1100.7.2 OFFSETS OF MORE THAN
45 DEGREES

A STACK WITH AN OFFSET OF MORE THAN

FORTY-FIVE DEGREES (45°) FROM THE VERTICAL SHALL BE
SIZED AS FOLLOWS:

THE PORTION OF THE STACK ABOVE
THE OFFSET SHALL BE SIZED AS
FOR A REGULAR STACK BASED ON
THE TOTAL NUMBER OF FIXTURE
UNITS ABOVE THE OFFSET.

THE OFFSET SHALL BE SIZED AS
FOR A BUILDING DRAIN. (TABLE
1100.2A)

THE PORTION OF THE STACK BELOW
THE OFFSET SHALL BE SIZED AS
FOR THE OFFSET OR BASED ON THE
TOTAL NUMBER OF FIXTURE UNITS
ON THE ENTIRE STACK WHICHEVER
IS THE LARGER. (SEE TABLE
1100.2B COLUMN 4).

A RELIEF VENT FOR THE OFFSET
SHALL BE INSTALLED AS PROVIDED
IN CHAPTER 12 AND IN NO CASE
SHALL A HORIZONTAL BRANCH
CONNECT TO THE STACK WITHIN TWO
FEET (2') ABOVE OR BELOW THE
OFFSET.

FIXTURE BRANCHES MAY BE
INSTALLED IN THE HORIZONTAL
SECTION BETWEEN OFFSETS
PROVIDED NO CONNECTIONS ARE
MADE UPSTREAM AND DOWNSTREAM OF
OFFSETS.