Hazem - A timed closure orifice (11-14) is typically a manually operated
gate that's either open or shut. A head-dependent gate (21-24) is
typically an automated gate that has an opening height dependent on
flow/head conditions. To understand how the model is behaving, set F3
or F4 IOPRNT to 1 and review the text output file.

Mitch Heineman, P.E. DEE
HeinemanM@CDM.COM