For a presentation of Distribution Box go to :
Optimize Water Distribution Gravity Systems
The following guidelines details DB specification and how to determine outlet pipe size Distribution Box : Calculation of Flow Repartition
The PDF Manual: Distribution Box Calculation
The Power Point: Distribution boxes (Contains a representation of the DB horizontal outlet problem)
Hypothesis on the hydraulics of crest flow
Annexe. Crest Flow in Distribution Box
Last Update 12/10/2018