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zero initial flow

Hello, 

For the attached model, When I run "Initial Conditions", The values of "Flow Supplied" and "Flow Demanded" are zero.  And then I calculated the model in Hammer,  there will be error message:   "Pump Efficiency must be betweeen 0% and 100% inclusive." Transient Engine.   So is the problem of  "Initial Conditions" caused the error message?  And how can we fix the model to remove the error and let the Transient calculation can be finished? Could you help to review this model and help to address the problem?

Thanks a lot1616.pump efficiency.zip