Question Cooler Master ML450L Noise

[secretbandname]

I recently built my PC a few months ago and I recently notices this loud ticking sound coming from the cooler, mainly from the water block I believe, right on the CPU.

I've noticed when I tip the tower to the left, the ticking goes away. Does anyone know a fix for this?

Here's a video with sound:

View: https://imgur.com/gallery/oyEolGi

 

[secretbandname]

Correction on the title: Cooler Master ML240L***

 

[madmatt30]

That sounds more like a fan catching than a pump

Are you absolutely sure it's coming from the cpu area??

 

[secretbandname]

I'm absolutely sure. I moved everything around tons of times and it's still pointing to the CPU area. Otherwise, all my temps are good and I havent had any issues but this noise

 

[madmatt30]

Has to be air in the pump, although that aio does get comments about weird noises from what I've googled.

What's your radiator orientation exactly??

And orientation of tubing into the radiator.

A photo clearly showing your internals would be useful.