Irrigation canal feeding a reservoir delineated and outflow channel

[Lukhmon Dadojonov]

Dear QSWAT+ community.

I need your assitance in clarification of few point, which I encountered during a watershed deliation and running the model.

My my question is about irrigation canal delineation. So in my project an irrigation canal by reason of DEM  ( ALOS PALSAR, with res 12.5 m  ) inconsistency for deliniating man-made features was incorrectly created in QWAT+, so it was cretaed with reverse slop from the river to reservoir, hence canal entering point into reservoir has been identified as outflow point instead of inflow point . What solution will be correct to fix it? Changing parameters of the channels through SWAT+ Editor?. But if so there will be a lot of manual works. Isn't it?. I already tried to fix it via delineation process by burning canals into the DEM for changing the slope, but it wasn't so much efficient. Does theare any idea how it can be done and what is standard approch on such cases?

Look to the enclosed screenshots, direction of the flow shown with arrow.

Will be apricited for any guidance and suggestions.

Thanks in advance!

Luk