User Forum of Software BASEMENT

nicolagroff

User

Registered: 2017-08-07

Posts: 10

Problems with INNER-BOUNDARY type: gate

Hi,
I'm using BASEMENT 2.7 and trying to use the gate INNER BOUNDARY condition. During the simulation I get the following error for two elements next to the upstream section of the gate:

WARNING -> Mass conservation is not guaranteed! Negative water depth in element
   #25684 (slope = 1.04827).
       missing volume to compensate the overdraft:   0.000275121

How could I fix this error?
Thanks for helping

Nicola