Looking at getting a new pump and came across these on ebay
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=280111034694&ru=
It states that it will pull 10 Pa which works out to 0.0029 inches mercury.
Is this the same as 29 inches mercury? Stupid question I know but its the decimal point that confuses me and I want to get a pump that will infuse ok.