And as for that link to wizd forums... (
http://www.wizdforums.co.uk/showthre...ight=flowmeter )
What he's trying to do has already been done and is commercially available already at low cost... and has been for... er... about 4 years I think (as long as the Innovatek Rev3 waterblock hsa been in existence) - See
http://www.webshop-innovatek.de/0000...3e0eac52f.html
They also do this one -
http://www.webshop-innovatek.de/0000...3b0dc5e17.html
and this one -
http://www.webshop-innovatek.de/0000...3e0e2802b.html
All in the region of 20 euros... ish... and all can be gotten in the US from
http://www.highspeedpc.com/