Can't get water out of loop

[kuedah]

So I created a new hard line loop. I could not position the drain and the very bottom of my rig. More or less because I was impatient and didn't want to buy new fitting, etc. in the middle of my first flush I realized wile empting the loop, I can't get all ththe water out of it. Is there a problem way/pump method to help with this matter

 

[Max1s]

...blow into the loop?

 

[n0ns3ns3]

in addition to the above, tilt your system so the water/liquid will travel to the drain port.
there is no way to make a loop that will have no liquid left after opening drain port (note that you probably need another port in the system like to be open to allow air to get in). Some amount of liquid will always remain in blocks, rads, pump, res and sometimes in tubing. just use paper towel (I have a roll near me when working on a loop) when you disassemble the loop.