Anyone did this before? I was able to activate fuel pump. Heard it run but there was no fuel coming out. I attached hose to the metal tube on the left upper part of the engine. I am pretty sure this is the fuel line to the fuel pump. Any ideas?

Trying to get all stale fuel out.

 

I have done it and it worked great. I don’t recall but I feel like that is a return line. I used the lines under the car by the left rear wheel. Just be careful when pulling the line as there might be some pressure.