What should the discharge outlet for an indirect waste be relative to the flood level of the receptacle?

The discharge outlet for an indirect waste should be sized at least 1.5 times the diameter of the indirect pipe relative to the flood level of the receptacle. This sizing requirement is crucial for ensuring proper drainage and preventing backflow or overflow issues.

When the outlet is appropriately sized to be larger than the discharge pipe, it enhances the flow capacity and helps accommodate the volume of wastewater being conveyed. This is particularly important in indirect waste systems, where maintaining proper drainage is vital to prevent spills or contamination. An outlet that is 1.5 times the size ensures that there is sufficient capacity to handle the discharge and that the system operates efficiently, minimizing the risk of clogs and ensuring that all waste is effectively removed from the receptacle.

In contrast, sizing the outlet the same, half, or twice the size of the indirect pipe may not provide the necessary hydraulic performance required for efficient drainage, as it could lead to issues related to flow restrictions or inadequate capacity.