Horizontal Drainage Pipe - Required Slopes
Minimum pitch of horizontal drainage pipes.
Drainage piping and recommended minimum slope or pitch:
| Pipe Diameter (in) | Pitch | ||
|---|---|---|---|
| (in/ft) | (m/m) | Gradient | |
| under 3 | 1/4 | 0.02 | 1:50 |
| 3 - 6 | 1/8 | 0.01 | 1:100 |
| 8 or larger | 1/16 | 0.005 | 1:200 |
- 1 in/ft = 0.083 m/m
Related Topics
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Sanitary Drainage Systems
The purpose of the sanitary drainage system is to remove effluent discharged from plumbing fixtures and other equipment.
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