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Thread: Number of Taps for 3/16 Gravity

  1. #11
    Join Date
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    Regarding taps per tree, I use 1 for 9"-23" if healthy, and 2 at 24"+ but only if the tree looks good and healthy. Never more than 2. I have hybrid vacuum, all are on 19-25" vacuum and then on lines that have at least 10' of drop I use 3/16 laterals. I had as many as 41 taps on one line, most were 3 or less, for next year all lines of 28 or more will be redone to split them in 2. While the longest (1100') with 41 taps still had vacuum on the lowest tree, I'm thinking it may have not been as high as it could be if I split the lateral into 2 lines.
    I have only had 3/16 for 2 seasons and I'm still tweaking the system for better performance. In 2017 I had about 2/3 of the taps on a 638 tap bush on 3/16, next year it will be a 725 tap bush and about 80% will be 3/16.
    Dave Klish about 1320 taps in '15, down to about 700 in '16, up to 850 for 2018?
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    added a gooseneck equipment trailer and F350 to tow it to haul more sap
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.daveandjoanssugarhouse.com

  2. #12
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    Quote Originally Posted by minehart gap View Post
    I failed to mention, I plan to use Leader Check Valve Adapters with Stubby Spouts on 3/16" leaders to a 3/16" lateral. The shortest lateral will be about 400' with 12 trees (up to 18 taps if tree size is applicable) the longest being about 700 feet with 21 trees available (up to 35 taps if tree size is applicable)
    My plan to split our lines will end up about the same as you, with long lines. Friction loss is negligible in sap lines so a long line won't make too much of a difference. Sure it sucks to use so much 3/16" but I figure the alternative (a vacuum pump) is much more expensive.
    Road's End Farm - Starting small with no end in sight!

  3. #13
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    Quote Originally Posted by Road's End View Post
    My plan to split our lines will end up about the same as you, with long lines. Friction loss is negligible in sap lines so a long line won't make too much of a difference. Sure it sucks to use so much 3/16" but I figure the alternative (a vacuum pump) is much more expensive.
    Road's End, I may be mistaken but I believe that you can run 3/16 gravity into a gravity main. This is what I plan to do in a couple years when I expand my sugarbush. If you have drop for the entire longer run, wouldn't you also have drop for a main?

  4. #14
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    Quote Originally Posted by blissville maples View Post
    Picture a five gallon bucket​ full of water and under pressure, obviously five holes will have, if at same height, one gallon of water a piece until the bucket is empty....you could accomplish this with one hole Right?? Under certain conditions, no. If the single hole froze when the bucket was half full due to a freeze up, remember the bucket is example for the tree, then the bucket was not exhausted of that liquid or sap run. If there was 5 holes the bucket would have emptied before it froze.
    What a great way to explain this. Thank you, blissville maples, but I am not following you when you say "This is why I believe going organic will reduce your GPT and the extra .15 does not make up the small loss in sap". Im not sure what one has to do with the other unless with organic you are only permitted 1 tap per tree.

  5. #15
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    The number of taps per tree are not related to how much sap could be extracted from that tree but rather how long it takes for that tree to add enough new growth as you continue to tap year after year so you have enough new wood when you tap over that old tap hole again. The tree will compartmentalize a column an 1.0-1.5" around that tap hole and from 12-24" above and below the hole. The tree needs time thus to add enough new wood so when you tap that spot again, drilling a 1.5" to maybe even 2" deep hole you don't end up drilling into a sealed off compartment. I put a piece of 5/16 tubing on my bits to stop it at 1.25" deep, that helps.
    Dave Klish about 1320 taps in '15, down to about 700 in '16, up to 850 for 2018?
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    added a gooseneck equipment trailer and F350 to tow it to haul more sap
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.daveandjoanssugarhouse.com

  6. #16
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    I remember reading on the PMRC site a while back on sap extraction. Putting a second tap on a 14-16 tree will not make enough difference to pay for the .50 drop and new spout every year. Organic is paying .20 cents more this year. If you had 1000 taps in an Organic woods and got .45GPT at 2% sugar that would pay you $11,038. If you two tapped those trees you would get about a .3 GPT With possibly a little less sugar. But if you got 2% also then you would make $13,398. That would be $2360 more. You would spend $250 more on spouts and $500 to put the drops in. There would be two more days of tapping so that would be 16 hours x $13 per hour= $208. You would spend another $50 pulling spouts. You also would have twice as much possible vacuum leaks. You would also spend twice as much on saddles for the additional taps. You might make a bit more in the end but would it be worth it? It's not for me to say. If i was not Organic I think I would rather tap everything over 6 inches rather then adding two taps to most trees.

    Spud

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