I just built my first water cool setup using a XSPC AX360 kit. Using a tube reservoir + d5 pump attached to it. So i I have the set up as reservoir/pump > cpu > radiator > reservoir. The thing is the water doesn't seem to be flowing. I have the reservoir filled up and it seems as though there is water in the radiator and the in the tubes. There are huge air gaps within some of the tubing though. I've tried tilting it around but no luck. The pump seems to be running since its making a loud noise. It's a d5 pump at the knob is set to 5. Do I just let it sit there with the power off? Or drain it and check if there's any blockage? I'm completely lost and frustrated. Thanks.