Water-cooled PC
Water-cooling a PC isn’t just about running water through your computer and hoping for the best. Even though it does involve using actual water (distilled water to be precise), the slightest error can lead to a fried motherboard. In this person’s case, they have nothing to worry about. It doesn’t even have a pump!
Without a pump, water can’t flow through the tube, which itself seems useless in this rig. So, what this person made is a simple desktop computer with a jug of drinking water on the side. Tech support probably laughed themselves silly after seeing this guy’s feeble attempt and creating a cooling system.