I have made a model in EPANET. The model includes a constant speed pump. Later I have imported the file in to the WaterGGEMV8i. I made an alternative for variable speed pump. The scenario with constant speed works, but child scenario with VSP generates message: Variable speed pumping is not suported by Epanet. Results may not match EPANET.
Only to add that number of message is 41797
The EPANET solver does not support variable speed pumping. If you want to correctly model a VSP, go to Calculation Options and set Engine Compatibility to WaterGEMS, not EPANET.
Thank you. It works.
Note that the message is only informational. The VSP pump is still analyzed normally for that Engine Compatibility setting, but the message is generated to advise that since EPANET does not support VSPs the results could be different to that which would be simulated in EPANET.
Messages such as this are generated any time you:
1. Run with an EPANET compatible engine setting, and
2. The model contains some features or data that is not possible to run in EPANET, and
3. The model considers (actually runs using) the feature that is noted in the message in the analysis of the results.
I hope this makes sense. Let me know if any clarification is needed.
Answer Verified By: Boyan Borisov