TABLE B. SIZE AND LENGTH OF VENTS FOR SOIL AND WASTE STACKS
| |||||||||
---|---|---|---|---|---|---|---|---|---|
Size of soil or waste stacks
(in)
|
Fixture units connected
|
Diameter of vent
(in)
| |||||||
1-1/2
|
2
|
2-1/2
|
3
|
4
|
5
|
6
|
8
| ||
Maximum developed length of vent (in feet)
| |||||||||
1-1/2
|
8
|
150
|
|
|
|
|
|
|
|
2
|
12
|
75
|
300
|
|
|
|
|
|
|
2
|
24
|
70
|
300
|
|
|
|
|
|
|
2-1/2
|
42
|
35
|
140
|
450
|
|
|
|
|
|
3
|
30
|
20
|
80
|
260
|
650
|
|
|
|
|
3
|
60
|
20
|
80
|
260
|
650
|
|
|
|
|
4
|
100
|
|
35
|
100
|
260
|
1100
|
|
|
|
4
|
250
|
|
30
|
95
|
240
|
1000
|
|
|
|
4
|
500
|
|
22
|
70
|
180
|
750
|
|
|
|
5
|
550
|
|
|
28
|
70
|
320
|
1000
|
|
|
5
|
110
|
|
|
20
|
50
|
240
|
750
|
|
|
6
|
|
|
|
|
20
|
95
|
2420
|
1000
|
|
6
|
|
|
|
|
18
|
70
|
180
|
750
|
|
8
|
|
|
|
|
|
30
|
80
|
350
|
1100
|
8
|
|
|
|
|
|
25
|
60
|
250
|
800
|
10
|
|
|
|
|
|
|
30
|
80
|
350
|
10
|
|
|
|
|
|
|
25
|
60
|
250
|