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Thread: problem with gradient

  1. #1
    Join Date
    Mar 2009
    Location
    New Durham,NH
    Posts
    230

    Default problem with gradient

    I have a 2X6 drop flue and 250 RO third year with this set up. Last boil all most lost it the wife open doors and added water and saved the day. Lucky on wine yet. Never had problems before. Started draw off at +7 when up to close to +20. Then it happened again and I pulled off at +6 when to +12.

    1. Will check level
    2. Will check thermostat

    any ideas
    2012
    12 X16 sugar shack
    2X6 Patrick Phaneuf hood/pre-heater
    260 taps tubing with guzzler and 12 buckets
    Rays 250 RO
    950 John Deere

  2. #2
    Join Date
    Dec 2002
    Location
    Rock Creek, NC
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    5,807

    Default

    Sounds like you were making syrup in the middle of your pan. Watch the bubbles and when it looks like syrup in the middle draw some off and dump it back into the pan behind the middle section to push it toward the draw off. Try running your pan a 1/2" deeper and fire consistently. You may be drawing off too slow too. Running a little deeper will help with that. I run mine at 1 1/2" and regularly start my draw at 7 and watch it go to 9 or 10 with the draw off wide open. I actually like doing it this way so that my syrup is heavy. I correct the density in my finisher before I filter and it is easier to thin it down with sweet from the front pan than it is to make it heavier in the finisher.
    Russ

    "Red Roof Maples" Where the term "boiling soda" was first introduced to the maple world!

    1930 Ford Model AA Doodlebug tractor
    A couple of Honda 4 wheelers
    Four chainsaws and no chickens!

  3. #3
    Join Date
    Mar 2011
    Location
    Potter County, PA
    Posts
    815

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    How much bubble rise are you getting in the front pan.? If it is too high, it will fool the float and sap level on the previous section. Allowing you to get very low in the final sections without you knowing. This will cause temps to sky rocket as you draw off.
    2008 4 buckets
    ~
    2016 1300 vac tubing
    18x24 sugar shack
    2x6 Grimm Lightning w/preheater on natural gas
    7" full bank press
    CDL 600 RO
    2000 Sonoma w/ 200gal tank
    2003 Duramax w/ 500 gal tank
    2 sap guzzling kids
    very patient wife!

    Same ol' addiction

  4. #4
    Join Date
    Mar 2011
    Location
    Greenwood, Me
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    977

    Default

    > correct the density in my finisher

    I'm sorry to interrupt but how are you doing this?
    2024 - New Maine resident, 12X12 sugar shack under construction
    2019 - New 12X12 boiling pavilion
    2018 - New Mason 2X3 Hobby XL and homemade RO

  5. #5
    Join Date
    Jan 2010
    Location
    Covington, New York
    Posts
    1,680

    Default

    Quote Originally Posted by eustis22 View Post
    > correct the density in my finisher

    I'm sorry to interrupt but how are you doing this?
    You add thinner stuff to thicker stuff. Personally, I am correcting density about four feet from my evaporator so I draw off near syrup from my syrup pan to bring down the thicker syrup I draw off. Others use sap or distilled water with good results too.
    Noel Good
    1998 to 2009: 15 taps on buckets, scavenged fire pit and pans
    2010: New 2x4 SS flat pan w/preheater
    2015: New to me Lapierre 18x60 raised flue, new shack, new everything!! 59 taps 23.75 gallons
    2016: 85 taps 19 gallons
    2017: Purchased 2.5 acres and tubed half with 3/16. 145 taps total 49.25 gallons
    2018: 200 taps (162 on 3/16ths 38 on buckets) New NextGen RO 63 gallons
    2019: 210 taps 73.5 gallons
    2023: 210 taps 89.75 gallons
    www.wnybass.com

  6. #6
    Join Date
    Mar 2009
    Location
    New Durham,NH
    Posts
    230

    Default

    evaporator level thermometer was of by -3
    2012
    12 X16 sugar shack
    2X6 Patrick Phaneuf hood/pre-heater
    260 taps tubing with guzzler and 12 buckets
    Rays 250 RO
    950 John Deere

  7. #7
    Join Date
    Mar 2005
    Location
    Albion PA
    Posts
    5,099

    Default

    What is a evaporator level thermometer? of by -3 what? inches?
    Sounds neat?
    Regards,
    Chris
    Casbohm Maple and Honey
    625 roadside taps + Neighbors bring some sap too!
    3x10 King, WRU, AOF and AUF
    12" SIRO Filter Press.
    2015 Ford F250 PSD sap hauler
    One Golden named Maggie, Norwegian Forest Cat named Lucy
    Too many Cub Cadets
    Ford Jubilee and several Allis WD's, and IH tractors
    1932 Ford AAB ton and a half, dump truck

    www.mapleandhoney.com

  8. #8
    Join Date
    Mar 2009
    Location
    New Durham,NH
    Posts
    230

    Default

    evaporator was level when I checked it today. thermometer was of by -3 so when I was reading +7 it was really +10. note 0 is boiling point of water. All most burned pan on last boil.
    2012
    12 X16 sugar shack
    2X6 Patrick Phaneuf hood/pre-heater
    260 taps tubing with guzzler and 12 buckets
    Rays 250 RO
    950 John Deere

  9. #9
    Join Date
    Nov 2010
    Location
    Barnet, VT
    Posts
    2,580

    Default

    Quote Originally Posted by TRAILGUY View Post
    evaporator was level when I checked it today. thermometer was of by -3 so when I was reading +7 it was really +10. note 0 is boiling point of water. All most burned pan on last boil.
    +20 will not burn your pan. Lack of fluid in the pan will burn pan. Maple sugar is way past +20.
    William
    950 taps
    3 X 12 Thor pans on a Brian Arch
    CDL 600 expandable

  10. #10
    Join Date
    Mar 2011
    Location
    Potter County, PA
    Posts
    815

    Default

    Boil point of water constantly changes... and some days by more then 3 deg from the previous day.
    2008 4 buckets
    ~
    2016 1300 vac tubing
    18x24 sugar shack
    2x6 Grimm Lightning w/preheater on natural gas
    7" full bank press
    CDL 600 RO
    2000 Sonoma w/ 200gal tank
    2003 Duramax w/ 500 gal tank
    2 sap guzzling kids
    very patient wife!

    Same ol' addiction

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