After a bit of poking round my HC, it turns out to be aluminum with brass cap ends

See this thread
http://forums.procooling.com/vbb/sho...&threadid=5187
I'm tempted to cut up the HC and make my own Cu tubing between the endcaps, has anyone done this before???? (recomendations anyone?)
And seen as this Xmas proved to be as boring as the last, I did a bit of lapping

(Atlantis NB & CPU)
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P4 1.8a @ 2888MHz 1.85v CPU Load/Idle 55/36oC
256meg PC2100 (generic crap) 2.5-5-3-2 2.65v
Abit BE7 RAID (R.I.P BD7-II)
CPU:MEM 1:1 160MHz
Cheapo Coolmaster HSF
Full Atlantis system under construction