Search:

Type: Posts; User: DrTimPerkins

Page 1 of 20 1 2 3 4

Search: Search took 0.11 seconds.

  1. 1" mainline provides much more room for vacuum...

    1" mainline provides much more room for vacuum (air) to move across the top. We won't put 3/4" in the woods any longer. The margin for dips is just too small. Let's say you're 3/4" pipe is 1/2...
  2. Replies
    5
    Views
    642

    Yes, Dori has built a rather nice business with...

    Yes, Dori has built a rather nice business with some interesting and unique products with excellent presentation.

    Tonewood has also been a strong supporter of PMRC research on climate change...
  3. All true. This is why we demineralize our well...

    All true. This is why we demineralize our well water if we use it.

    Using sap is a last resort, sometimes the only way to rinse for those sugarhouses without a clean water source (or any water...
  4. Replies
    191
    Views
    65,251

    Sure looks a lot better than when you started. ...

    Sure looks a lot better than when you started. Nice job.
  5. We've used three different approaches depending...

    We've used three different approaches depending on the year. All seem to work.
    1. Deionize/demineralize our well water (we have a lot of iron and manganese in our water).
    2. Get RO water from a...
  6. Replies
    191
    Views
    65,251

    Looking good. Worth it's weight in drill bits!

    Looking good. Worth it's weight in drill bits!
  7. Replies
    13
    Views
    783

    Interesting. Any idea of cost?

    Interesting. Any idea of cost?
  8. Replies
    13
    Views
    783

    If I understand you correctly, and you need 60+...

    If I understand you correctly, and you need 60+ ft of lift on that many taps, you're probably better off going with a vacuum powered sap piston pump (such as those on the 2020 Lapierre catalog, page...
  9. A new playlist called "Point of View Videos" and...

    A new playlist called "Point of View Videos" and a series of videos was added to the PMRC YouTube Channel.

    https://www.youtube.com/playlist?list=PLZP4fDl-nB99Sa5DiOCmo-zWxeu_kH6hB

    These were...
  10. Replies
    9
    Views
    984

    Great example. Do you want a system that'll work...

    Great example. Do you want a system that'll work great when the sap isn't running well, or a system that works great when the sap is running at peak flows.
  11. Replies
    18
    Views
    1,524

    My condolences. Some of my fondest memories are...

    My condolences. Some of my fondest memories are of haying, sugaring and cutting wood with my father and grandfather.
  12. Replies
    9
    Views
    984

    I agree. Small changes in diameter compounded...

    I agree. Small changes in diameter compounded over a long distance make a big difference in air transfer capacity. Look up the line loss in the Cornell Tubing Notebook...
  13. Replies
    29
    Views
    3,536

    Unfortunately that is not a simple calculation. ...

    Unfortunately that is not a simple calculation. Deterioration in storage is a function of sugar content, time and temperature (and starting level of contamination of the sap/concentrate and...
  14. Replies
    0
    Views
    224

    UVM Resources for Maple Producers

    UVM Resources for Maple Producers

    Although the 2020 maple season is over, learning how to improve the yield from your woods, maintaining the sustainability of your operation, increasing the...
  15. Replies
    0
    Views
    172

    UVM Maple Webinar Series

    UVM Maple Development Webinar Series Starts in August
    Mark Cannella

    University of Vermont maple specialists will host a series of online webinars focused on business decision making and forestry...
  16. Normal sap flow in a 3/16" natural vacuum maple...

    Normal sap flow in a 3/16" natural vacuum maple tubing system

    https://www.youtube.com/watch?v=a4vShZBWWVA
  17. Replies
    36
    Views
    31,512

    Longer is better if possible to allow for a...

    Longer is better if possible to allow for a stronger flavor transfer. When bottling afterward, it is then possible to dilute back to the desired intensity of flavor.
  18. Replies
    0
    Views
    160

    UVM Extension Maple Business Program

    You are invited to join the University of Vermont Extension Maple Business Program. to help shape a new networking and professional development opportunity. University of Vermont Extension is...
  19. Thread: Dr. Tim

    by DrTimPerkins
    Replies
    4
    Views
    1,147

    Nothing to report at this time. Sorry.

    Nothing to report at this time. Sorry.
  20. Replies
    10
    Views
    1,121

    There is that possibility for many things in...

    There is that possibility for many things in maple. In this case, I doubt there would be any difference. There is no reasonable physiological mechanism I can think of that might cause a difference.
  21. Replies
    29
    Views
    3,536

    That is correct. Sap coming out of the RO might...

    That is correct. Sap coming out of the RO might be a bit warm depending upon how hard you're squeezing it, but the air temperature is generally fairly low, so the compressor isn't working too hard.
  22. Replies
    10
    Views
    1,121

    That is correct. We did not assess spout heaving...

    That is correct. We did not assess spout heaving (although there was none). The study was done on natural vacuum using 3/16" tubing and polycarbonate tubing spouts.
  23. Replies
    15
    Views
    2,179

    Note that I cannot certify that there is no PFAS...

    Note that I cannot certify that there is no PFAS in your or any particular syrup without it being tested, however in the testing that the Vermont Department of Environmental Testing did of maple...
  24. Replies
    15
    Views
    2,179

    I assume you mean heat exchangers? If so, we did...

    I assume you mean heat exchangers? If so, we did some work several years ago using hot water off the Steam-away to preheat incoming sap. It raised the efficiency by a good amount. I do know some...
  25. Replies
    15
    Views
    2,179

    It depends almost entirely on the substance in...

    It depends almost entirely on the substance in question. PFAS compounds don't seem to be taken up by trees. Neither is lead. Some pesticides are translocated systemically in the tree. The best...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4