Table § 18-29-710A

Diameter of Pipe (inches)

Maximum Number of Drainage Fixture Units Connected to any Portion of the Building Drain or the Building Sewer, Including Branches of the Building Drain a

Slope per Foot

1/6 inch

1/8 inch

1/4 inch

1/2 inch

1 1/4

1

1

1 1/2

3

3

2

21

26

2 1/2

24

31

3

36

42

50

4

180

216

250

5

390

480

575

6

700

840

1,000

8

1,400

1,600

1,920

2,300

10

2,500

2,900

3,500

4,200

12

2,900

4,600

5,600

6,700

15

7,000

8,300

10,000

12,000