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Thread: Why does CDL put 2 holes in the float box???

  1. #1
    Join Date
    Nov 2018
    Location
    New York
    Posts
    5

    Default Why does CDL put 2 holes in the float box???

    Putting this evaporator together i just bought and i cannot find any information on why CDL put a second hole in the front of the float box and about 2 inches below the sap intake. The sap inlet hole (At the back of the box) has the bigger pipe welded on it for the reverse flow pipe, the second hole does not. Since is a reverse flow machine so it doesn't make sense that this is in it, seems like it would defeat the purpose?? For some reason it isnt letting me upload pictures...

  2. #2
    Join Date
    Jan 2016
    Location
    Tamworth NH
    Posts
    19

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    Is it the one that gets capped and only used when you switch sides? Which Float box? Rear or front?
    Mac Hill Maple
    CDL 2X6 Deluxe oil fired
    CDL 250 Hobby RO
    12x20 re-purposed sugarhouse
    350 taps for 2019
    Wife, 3 kids & a Blue Heeler
    Dealer for CDL Maple Sugaring Equipment.

  3. #3
    Join Date
    Mar 2011
    Location
    Louisville, Kentucky
    Posts
    215

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    For a sight glass?
    Dave Barker
    2014 30 taps, steam tray pans
    2015 ~100 taps, in conjunction with University of Louisville
    2x5 Smoky Lake hybrid pan
    2022 150 taps

  4. #4
    Join Date
    Apr 2013
    Location
    Speyside, Ontario
    Posts
    271

    Default

    Just use www.imgur.com to host pictures and put the link here.
    2015 - 8 buckets, 332L sap, 8.5L syrup - Barrel evaporator, 2 steam pans
    2016 - 8 buckets, 432L sap
    2017 - 10 bags, 470L sap, 9L syrup
    2018 - 20 bags, 1050L sap, 17.6L syrup
    2019 - 20 bags, 970L sap, 22.2L syrup
    2020 - 17 bags, 813L sap, 17L syrup

  5. #5
    Join Date
    Nov 2018
    Location
    New York
    Posts
    5

    Default

    See if this works for the picture upload: https://imgur.com/a/va5fAa5


    It’s definitely not for the reverse flow as it is in line with the flues. There is an 8 inch stainless pipe I would use to use the evaporator on one side then if I want to use the other side I take the 8” pipe off.

    There is only one float box on the rear pan, on the back side passenger side of you are look at it. Then obviously 2 float boxes on the finishing pan

  6. #6
    Join Date
    Dec 2013
    Location
    Stockbridge,Ma
    Posts
    285

    Default

    Maybe it is to help the float regulate to the true depth in the flue pan and not be affected by the boiling.
    First introduced to making maple syrup in 1969
    Making syrup every year since 1979
    3 x 10 oil fired
    Revolution syrup and max flue pan
    Almost 1300 taps total with 900 on high vacuum
    Bought first Marcland drawoff in 1997, still going strong.

  7. #7
    Join Date
    Apr 2009
    Location
    Bristol, VT
    Posts
    1,978

    Default

    Quote Originally Posted by bill m View Post
    Maybe it is to help the float regulate to the true depth in the flue pan and not be affected by the boiling.
    Yes. The hole between the flue pan and float box that you circled in your photo is to allow the level in the float box to represent the level in the pan.
    About 750 taps on High Vac.
    2.5 x 8 Intens-O-Fire
    Airtech 3 hp LR Pump
    Springtech Elite 500 RO
    14 x 24 Timber Frame SugarHouse
    16 x 22 Sap Shed w/ 1500 gal. + 700 gal. tanks
    www.littlehogbackfarm.com

  8. #8
    Join Date
    May 2015
    Location
    Vermont
    Posts
    185

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    it is for the depth of the liquid the float sits on. there should be a divider in the center though.

  9. #9
    Join Date
    Nov 2018
    Location
    New York
    Posts
    5

    Default

    Okay that makes sense but wasn’t sure how the new sap coming in doesnt mix with the stuff already boiling. Previous owner never had a divider. Should I make something and put one in?

  10. #10
    Join Date
    Apr 2009
    Location
    Bristol, VT
    Posts
    1,978

    Default

    What size and type of evaporator is this pan on? Why is a divider necessary? The incoming sap is going to go where you want it.... right?
    About 750 taps on High Vac.
    2.5 x 8 Intens-O-Fire
    Airtech 3 hp LR Pump
    Springtech Elite 500 RO
    14 x 24 Timber Frame SugarHouse
    16 x 22 Sap Shed w/ 1500 gal. + 700 gal. tanks
    www.littlehogbackfarm.com

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