number of taps on 3/16 with steep slope

[lewichuk19]

Was watching a youtube video on 3/16 tubing setup, (the Krueger Norton sugarhouse video). In the comments on the video, someone states, and i quote.." when using more than 13% gravity, 3/16 sap line can have a maximum of 45 taps per lines instead of 25 and this find came from a study that was made at Cornell university." ....I assume he means 13% slope, not 13% gravity.

My question is:

Does anyone know if this info is correct ???....Going to be setting up a very steep bush in the near future, it would be nice to have less lines with more taps if it is....

[Ultimatetreehugger]

Following this post. I'm in the same situation. I've decided I'm not putting more than 7 trees on a 3/16 sap line giving me 7 to 14 taps on each line.

[WESTVIRGINIAMAPLER]

Most of the 3/16 I run is on steep slopes and I don't think it is good to go over 25 taps. On heavy sap flow days there is a lot of sap coming through the lines. To me the biggest reason would be leak issues. If you have 3 lines with 15 taps and get a chew on one of the 3 lines, you are affecting vacuum to 15 taps. If you have all your eggs in one basket aka 45 taps on one line and get a leak or damage, you are affecting all 45 taps. With the amount of sap coming through a 3/16 line with 45 taps on it also, I would have to believe you are going to hurt production to the last 10 to 20 taps on the bottom part of the line on heavy flow days due to lack of room for sap entry in a high volume line.

[BAP]

I have 5 lines of 3/16” on fairly steep slopes. They have between 20-24 taps each. On a good sap day there is a lot of sap coming out of those lines. I feel if there was more than 25-28 taps on the lines, then on a good sap day I would lose some production from the line not being able to carry enough.

[Sugarbush Ridge]

Was watching a youtube video on 3/16 tubing setup, (the Krueger Norton sugarhouse video). In the comments on the video, someone states, and i quote.." when using more than 13% gravity, 3/16 sap line can have a maximum of 45 taps per lines instead of 25 and this find came from a study that was made at Cornell university." ....I assume he means 13% slope, not 13% gravity.

My question is:

Does anyone know if this info is correct ???....Going to be setting up a very steep bush in the near future, it would be nice to have less lines with more taps if it is....

Please share if anyone finds this study.

[maple flats]

Following this post. I'm in the same situation. I've decided I'm not putting more than 7 trees on a 3/16 sap line giving me 7 to 14 taps on each line.

I believe I read about a study that found it is not good to have too few taps on 3/16 either, 7 is likely too few to get good gravity generated vacuum, 14 might be near the lower suggested limit and somewhere around 30 is considered maximum. When you have too few you don't get enough sap in the line many times to generate the desired vacuum.

[buckeye gold]

Is this the one

https://www.youtube.com/watch?v=QQX9L1KnBh8

[lewichuk19]

that is the video yes. the first comment in the comment section is what im talking about.

[BAP]

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

[maple flats]

I read Tim Wilmot's piece, linked from The Maple News above. Well, I guess I've been corrected, 7 taps should be fine.