Yoyodyne isn't saying what tubing it sells but my guess it's silicone tubing that's compatible with brake fluids. Probably one of the TYGON formulations such as:
http://www.tygon.com/data/element/no...0000000015 02 Talk to your local industrial or medical equipment supplier, or get the name of the local sales rep .
The tubing's not under pressure, but one guy mentioned that the tubing that he tried started to weep fluid after a bit.
Shazaam!
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