cmf.waterbalance_connection does not work proberly

[richardneumann84]

Hello,
waterbalance_connection is ignoring other defined outflux from left node.
(trying the online tutorial as in the linked code, the flux_s3_s5 does not match with its definition - due to ignoration by waterbalance_connection). I also tried to change the order of the flux definitions - didn't fix the issue yet.
I expected waterbalance_connection to do this: flux_s3_s4 = flux_s1_s3 + flux_s2_s3 - flux_s3_s5 (see tutorial).

waterbalance_tut_RN.zip

some things are strange with the tutorial for the waterbalance_connection, too:
I: in the online tutorial the initial volumes for s1 and s2 are missing
II:

flux_s1_to_s3 = [] flux_s2_to_s3 = [] #insert ','
flux_s3_to_s4 = [] flux_s3_to_s5 = [] #insert ','
plt.ylabel("Flux [m³/day]") plt.xlabel("Time [days]") #insert ','

[philippkraft]

Sorry for the Waterbalance-Tutorial, it is a complete mess and needs reworking. The waterbalance connection has the effect to keep the change rate of a storage 0 and hence the volume stored remains constant. In your case, the storage S3 has the initial and by the WB-Con constant value of 0 m³, and hence the technical flux from S3 to S5 is also 0 m³/day (see API-DOC for TechnicalFlux).

[philippkraft]

I have opened a new documentation issue for this and close this one.

[richardneumann84]

In order to gain fluxes like:
flux_s3_to_s4 = flux_s1_to_s3 + flux_s2_to_s3 - flux_s3_to_s5 (see tutorial)
and
flux_s3_to_s5 as defined
which also keeps s3 empty
I changed the order of definitions like shown in the linked code
waterbalance_tut_RN (2).zip
(the cmf.waterbalance_connection is here defined within the solver_loop.)
Do you see any problems with this?