I appreciate the concern. My supervisor actually was keen on the idea that I ask around at cooling/overclocking forums.
Don't worry, I'm not going to be negligent about selecting a pump. I just want to get an idea of what pumps work and what pumps don't work at such a low temperature and with acetone. The $700 pump will work great, but unfortunately our client wants us to find a cheaper one.
This cooling system is not my own design. My area of expertise is electrical systems. So if you know of good pumps, please let me know. Don't be afraid that somebody will get hurt because we will consult with the manufacturer and test the pump very carefully before using it with acetone.
Also, if you have an idea of how to cool down to such low temperatures via other methods, please let me know and I can pass it along to the guys who designed the cooling system.
thanks.
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