Something is Living in my Pool-Cooled Gaming PC

Linus and the team discover that their ambitious pool-cooled LAN center PCs, while no longer suffering from corrosion, have developed a mysterious (and frankly funky) living gunk in the cooling loops. They fully teardown the rigs, inspect what’s growing inside, and even bring out a “Death Ray” cleaner to blast away the biofilm.

Throughout the video they walk through assembly, prevention tips, and a variety of cleaning tactics—only to leave us guessing whether any of it truly worked 100%. It’s a lighthearted dive into the unexpected high-maintenance side of pool-based PC cooling.

Watch on YouTube