| Trap Arm | Distance: Trap to Vent |
| 1.25" | 2'- 6" |
| 1.5" | 3'- 6" |
| 2" | 5'- 0" |
| 3" | 6'- 0" |
| 4" & Larger | 10'- 0" |
-Ref:
UPC, Table 10-1
-Slope: (1/4)" per ft.
-(*) Distance
from trap of
W.C., measured
from top of closet ring (flange) to inner
edge of the vent, should not exceed 6 ft.