Flow not reaching the outlet pipe

I am doing a flow analysis for a mini hydroponics system.

My inputs are 1000 lph at inlet (fully developed), and working medium is water.

Used internal flow with Gravity option.

I have assigned environmental pressure at outlet.

Used 1000 iterations and Goal convergence as solver settings.

Mesh settings I used level 3 with narrow channel refinement.

Goals that I applied at outlet face is Volume flow rate.

Iterations done successfully. But while checking the flow trajectories, the fluid is not flowing throughout the entire system.

It is not reaching the outlet pipe (video attached for reference)

What settings do I need to make to get actual results.

Or do I need to go for time dependent analysis.