Urgent- Reservoir Emptying- Please Help

[nishant]

Hi all,
i am working on EPANET for first time. there are 5 nodes in m ysystem with a single reservoir with the head = 100m. The run is successfule but there is a warning message that reservoir emptiying after 5th run.

Also, there are negative flow velocities in the pipes.

Also the head at nodes are "UNTOLERABLY HIGH" IN THE UNITS OF 5*10^8 METERS.

are these things possible.

PLEASE HELP ME AS SOON AS POSSIBLE. i AM WORKING ON A PROJECT WHICH I NEED TO SUBMIT IN 4 DAYS

[modeler]

negative velocities mean an opposing direction of flow from ur assumption while doing the model in epanet.exmple, u draw the pipe from left to right..epanet wil consider also left to right assumption of flow in that pipe ..however,upon running epanet will check flow..and give negative value of velocities for different flow direction.
with regards to ur emptying reservoir, try adding the head of the reservoir until it never empties.