Odd simulation results in new catchment

[Johan Olanders]

Hi,
I am afraid I counted my chickens before they hatched!
I’m getting odd simulation results.

Somehow one sewage treatment plant (Buxted) won’t give any discharge. Both
the Discharge Influent Csim and Discharge Effluent Csim are zero. I have
tried to check source files for errors regarding the Population served, the
hydrology and the sewage discharges at that point but everything seems
normal to me....

Also I found that concentrations change to abruptly i.e. changes from high
concentration to zero instantaneously even though no dilution takes place.

See attached word document for a picture of odd results.
(If someone want the source files for pre-processing let me now.)

Thanks, Johan