Water Cooling Legal?

[s_forbes]

@CarlosGJ

I’d argue that the current rules forbid a system that has a pump circulating water through a circuit (which is what people usually mean when they say “water cooling”). It’s a hydraulic system, regardless of whether or not the intent is to apply mechanical force.

If I may cite precedent: Are Fans Pneumatic Devices? - #2 by notmattlythgoe