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    Yes, this is possible with some of the newer...

    Yes, this is possible with some of the newer machines.
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    Normally an RO membrane can achieve (under...

    Normally an RO membrane can achieve (under optimal conditions) about a 4.7X increase in sap sugar concentration. So if you're starting with 2 Brix sap, you'd be able to get to 9.4 Brix. Sometimes...
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    Yup, those Laws of Thermodynamics will get you...

    Yup, those Laws of Thermodynamics will get you every time. :lol:

    In case you've forgotten your high school physics and miss that reference, the total amount of energy in the system remains...
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    http://npic.orst.edu/factsheets/btgen.html The...

    http://npic.orst.edu/factsheets/btgen.html

    The most common spray has a bacterium in it, Bacillus thuringiensis, more commonly known as BT. It is a naturally occurring bacteria found in soils. ...
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    It is regularly suggested that the USDA NASS...

    It is regularly suggested that the USDA NASS numbers are an undercount -- I've heard that since I've been involved. Three things:
    1. The data relies upon the voluntary sharing of data with the...
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    We've not used them, but have visited a few sites...

    We've not used them, but have visited a few sites where they were in the operation. Seemed to work well and the producers using them liked them. Your best bet might be to chat with your local...
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    2021 USDA Crop Report

    https://www.nass.usda.gov/Publications/Todays_Reports/reports/crop0621.pdf

    Maple section starts on page 11.

    Could have been worse I suppose.
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    Just a quick note to say that if folks are...

    Just a quick note to say that if folks are organic-certified, please check with your certifying agency to see what options are available and allowed. Some of those mentioned would definitely not be.
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    Maple anthracnose is mostly an aesthetic problem,...

    Maple anthracnose is mostly an aesthetic problem, rarely a cause for major concern. Tends to happen more in wet springs or in areas with a lot of dew that don't dry quickly. If it is on a lawn...
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    Taphole closure (over the outside, as others have...

    Taphole closure (over the outside, as others have said, the hole does not fill in) is primarily dependent upon tree growth rate, which can vary considerably from tree-tree and from season-season. ...
  11. Those generators are pretty reliable with regular...

    Those generators are pretty reliable with regular maintenance. Made to operate under pretty harsh conditions.

    Just make sure you use start-up amps when you sum up the total power requirements. ...
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    Many years ago (mid-1990's I think) we went to...

    Many years ago (mid-1990's I think) we went to Washington D.C. when our daughter was about 10 yrs old. Down on the mall near the Smithsonian there as a "Bug Fest" event going on. One of the tents...
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    Ken is absolutely right. When we started doing a...

    Ken is absolutely right. When we started doing a lot of research on chambers for sap yield measurements in the 1990s, the vacuum lines were initially run aerially. These were not used to transport...
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    Nice to see that. Your forest must have good...

    Nice to see that. Your forest must have good calcium levels. Maple seedling success is pretty highly related to soil calcium.
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    Planting and rearing of trees will yield what you...

    Planting and rearing of trees will yield what you put into it, minus any unforeseen issues as mentioned. You could plant RPM trees (Forest Keeling Nursery https://fknursery.com/ although I don't see...
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    Small maple trees under a dense canopy will grow...

    Small maple trees under a dense canopy will grow very slowly. They are basically living just above their minimum carbon acquisition needs, and there is barely enough energy capture (from sunlight)...
  17. Sure, but units that are really effective are...

    Sure, but units that are really effective are also really expensive, so few producers use them. UV units made for water have very limited effectiveness. The thickness of the water (or sap) film...
  18. The "energy" derived by living things is held in...

    The "energy" derived by living things is held in the bonds of different chemical structures. You can kind of the energy as rubber bands that are stretched around and holding different elements or...
  19. Could be several things, but quite possibly Gypsy...

    Could be several things, but quite possibly Gypsy moth as has been suggested. Forest Tent Caterpillar has kind of died down after several years of high numbers recently. Unfortunately the dry...
  20. Thread: Tees

    by DrTimPerkins
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    Polycarbonate does not hold up well over several...

    Polycarbonate does not hold up well over several seasons. Very low UV resistance so they get brittle and break. I suppose a manufacturer could make them with a UV additive. The other alternative...
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    Correct. If the pipe composition hasn't changed...

    Correct. If the pipe composition hasn't changed a lot, then the frictional loss would be the same. Differences in required CFM might arise from how tight the system can be made. There have been...
  22. On good vacuum, red maples can produce reasonably...

    On good vacuum, red maples can produce reasonably well...quite close to sugar maple in volume, sometimes a bit less sap sugar. However, they are quite variable from tree-to-tree and even from one...
  23. Unfortunately there is no simple answer. ...

    Unfortunately there is no simple answer. Spoilage is related to time, temperature, sugar concentration and microbe type and level. Time can be controlled by processing quickly. Temperature can be...
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    Not that I am aware of or heard reports of. An...

    Not that I am aware of or heard reports of. An RO system might not like it much.
  25. Not a diagram, but this video might be helpful. ...

    Not a diagram, but this video might be helpful.
    https://www.youtube.com/watch?v=c6lpMgsfF-c&list=PLZP4fDl-nB9-4aZkQyDR070QpxcAr02q5&index=9&t=13s
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