Flourinert was very.. yellow. The cray-1 had a see-through plastic recirculation tank with a float, much like a toilet. Oddly, hidden away inside a cabinet. We

Flourinert was very.. yellow. The cray-1 had a see-through plastic recirculation tank with a float, much like a toilet. Oddly, hidden away inside a cabinet. We hung a plastic squeaky Lobster in ours (-UQ) because we'd named the Cray "yabby" for obvious reasons. I helped in very minor ways commissioning the system, so I got to play around the edges. Looking at hotspots through an old school IR camera with about 127 scanlines was fun too. Hint: just because a raised floor was OK for IBM cooling pipes doesn't mean it meets minimum bend radius for a Cray. Oh dear..