The maximum slope of a battery vented soil or waste branch is _____________ inch per foot.

The maximum slope of a battery vented soil or waste branch being 1/2 inch per foot ensures adequate drainage while minimizing the risk of blockages and maintaining proper hydraulic conditions within the plumbing system.

Having a slope of 1/2 inch per foot allows gravity to effectively assist in the movement of wastewater, which helps to prevent sediment build-up and promotes efficient flow. Steeper slopes, such as those greater than 1/2 inch per foot, can potentially lead to issues such as excessive velocity, which might cause solids to be carried away from the waste without proper transport, thereby increasing the likelihood of clogs further down the system.

In plumbing code, particularly in Omaha's regulations, this threshold is established based on considerations of both functionality and sustainability of the plumbing infrastructure, ensuring that the system operates within safe and effective limits.