Tubing/Tapping Recommendations: 3/16 vs 5/16, rigid vs semi rigid
Hi All,
This will be my second year using tubing for maple syrup production. Last year I put up about 60 taps on Leader 5/16 semi rigid UNI-50 dark blue tubing straight into a 275 gallon tote. This year I am looking to expand to about 200 taps and add some 3/4" mainline.
I am currently stuck between expanding my use of 5/16 tubing, or trying out 3/16 tubing while I do not have much 5/16 up yet. I have heard some pretty solid reviews of 3/16 tubing on this site, but I have a few concerns.
My primarily concern is the need for a significant drop to create vacuum. I have read that a drop of approximately 20-30 feet is desirable to create sufficient vacuum. The area I am looking to tap does have a slight slope, but is mostly gradual with no major drops and could easily be traversed by an ATV/tractor if not for the trees/brush/rocks. Just judging by the eye, maybe a 10 ft drop over 200ft. That might still be a bit more than it actually is. Not sure how to accurately measure it better aside from running some lines and finding level.
I believe it is sufficient for a normal 5/16 gravity system, but am not sure that it would be enough to be worth a 3/16 system. The low point is next to a stream bed next to the road and is not near any current power source. A power post could be put in in the future for a vacuum system if I expand to the point it is desired, but is not readily available at this time.
Additional concerns include needing tools for 3/16 tubing where currently I have managed to put up 5/16 tubing by hand, as well as a discussion with a supplier regarding issues with 3/16 if not on a major slope or if vacuum is installed in the future.
My other main question has to do with tubing types. I started last year with Leader 5/16 semi rigid UNI-50 dark blue tubing, primarily due to it being the cheapest option and just wanting to get started with it. I used this in conjunction with CDL 7/16 spouts and CDL Max Flow Tees w/plug. What is the difference between the different tubing types? Rigid, semi rigid, max flow? I haven't found much describing each and their uses, especially company specific types. Should one type be used for laterals and the other for drops? Could also use some advice regarding differences between taps as well. 7/16, health spouts, antibacterial, check valves, etc. I am still fairly new at this and mostly self taught from reading this forum and watching videos of it being done.
Any other input regarding recommended lines, taps/differences between them, how to connect to the mainline, and mainline size/pitch would be greatly appreciated as well.
Thank you in advance!
Matt