You are better off to follow the recommendations of the people that researched and developed the 3/16" than a comment on a YouTube video. Here is the link to an article written by Tim Wilmot. Lots of good information from someone who knows.
http://www.uvm.edu/~pmrc/3-16%20Tubi...ec%202014a.pdf
Sugaring for 45+ years
New Sugarhouse 14'x32'
New to Me Algier 2'x8' wood fired evaporator
2022 added a used RB25 RO Bucket
250 mostly Sugar Maples, 15% Soft Maples. Currently,(110on 3/16" and 125 on Shurflo 4008 vacuum, 15 gravity), (16,000 before being disabled)
1947 Farmall H and Wagon with gathering tank
2012 Kubota with forks to move wood around