I am planning to install a traditional 5/16 tubing system and am looking at different ways to get high vacuum (26 in Hg). My system will have an 800' vacuum line and a similar length returning sap line with needing to lift approximately 20'. I am wondering if a vacuum generator rather than a vacuum pump could be used to generate the vacuum needed for the system. I was wondering if something like the Gast VG-260-02-00 could be used to create the vacuum?