Diehard
In Remembrance
Results of my search of code requirements for maximum slope on Sanitary Drainage Pipe.(Some think 1/4" per foot is the max. by code.)
Reference is made to the IPC(International Plumbing Code)
The code includes a chart for MINIMUM slopes of sanitary Drainage pipe. It does not address MAXIMUM slope except under the Vent section.
It actually shows 1/2" per foot slopes in charts when referring to maximum fixture unit loads. So we know that definitely is an acceptable slope.
I found where others had made INCORRECT references to requirements stated under the Venting Section. One which applied to Circuit Vented Branches, 914.3., included below.
And another which applied to Combination Waste and Vent System, 915.2.1., included below
Reference is made to the IPC(International Plumbing Code)
The code includes a chart for MINIMUM slopes of sanitary Drainage pipe. It does not address MAXIMUM slope except under the Vent section.
It actually shows 1/2" per foot slopes in charts when referring to maximum fixture unit loads. So we know that definitely is an acceptable slope.
I found where others had made INCORRECT references to requirements stated under the Venting Section. One which applied to Circuit Vented Branches, 914.3., included below.
And another which applied to Combination Waste and Vent System, 915.2.1., included below