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Thread: Aargh—-Broke the glass sight tube again

  1. #1
    Join Date
    Feb 2010
    Location
    Leeds County,Ontario,Canada
    Posts
    988

    Default Aargh—-Broke the glass sight tube again

    Don’t know why companies make the sight tubes glass instead of plastic,though probably for more sales. With the freeze up we’ve had here for a couple days now,checked the pans today,had distilled water from the steam away in the syrup pan,not frozen,but the little bit of sap in the sight tube on the side of the flue pan was frozen enough to break the base of the tube. Cleaned the glass out of the fitting,but now my mark for the top of the crimps is inaccurate,which brings me to my next question,what type of light bulb do you place in your hood? Last year had an LED bulb in the base of the steam away,flickered throughout the season. Upon wash up we found the base of the bulb cracked from all of the shaking from the flue pan. Put a new one in this season,only worked the first day,so I have been boiling blind with the flue pan depending upon the sight tube for height since I can’t see in the window. LED bulb in the steam hood is fine,but hood doesn’t shake violently like flue pan and steam away
    7th generation maple producer in sugarhouse built in 1892
    2x World Champion Maple Syrup Producer
    1250 taps on cv adapters
    Leader Vortex 3x14 with Max Flue and Revolution Syrup Pan,Enhanced Steam Away
    www.leggettmaplesyrup.com

  2. #2
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    11,109

    Default

    For the hood light I used a shielded fixture with a screw on metal caged glass cover, and a 100 watt incandescent bulb. It was rated as moisture resistant. In the 8 years that has been installed I had to change the bulb once. In case the bulb breaks the screw on cover would catch the broken glass, but I never had it break. As far as glass sight tubes, I finally got a crack in mine, so I ordered 2 as replacements.
    Dave Klish about 400 taps, down from much more. Retired from collecting and boiling in 2021. Mostly because of a bad hip.
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    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
    website: www.cnymaple.com

  3. #3
    Join Date
    Jan 2016
    Location
    Tamworth NH
    Posts
    18

    Default

    Even though the evaporator companies charge all outdoors for the glass sight gauges, you can get them from your local plumbing supply store for less than 2.00. They are a 5/8" sight glass for a steam boiler...

  4. #4
    Join Date
    Dec 2018
    Location
    Wisconsin
    Posts
    20

    Default

    Try polycarbonate. Available through brewer's supply companies.

  5. #5
    Join Date
    Feb 2010
    Location
    Leeds County,Ontario,Canada
    Posts
    988

    Default

    Have polycarbonate tube on order from Amazon,until then used the dremel this morning and rolled the tube around and around until it cut off fairly clean,just a few burs to grind off afterwards. Might have to tighten the compression nut up by hand and allow it to leak so I don’t bust the tube any more. Should I have the nut tight before I slide the tube in if I can push it in,or slide tube in and tighten after?
    7th generation maple producer in sugarhouse built in 1892
    2x World Champion Maple Syrup Producer
    1250 taps on cv adapters
    Leader Vortex 3x14 with Max Flue and Revolution Syrup Pan,Enhanced Steam Away
    www.leggettmaplesyrup.com

  6. #6
    Join Date
    Oct 2007
    Location
    Wellsboro Pa
    Posts
    281

    Default

    I've broken tubes before. I just turn them over and use the other end until I get a new one. Tighten the nut after you put it in. Just pull on it a little until it is snug. Will take Willstrtr suggestion and check it out. If you get some you can store in a piece of 3/4" mainline they fit snug so they don't fall out.

  7. #7
    Join Date
    Feb 2010
    Location
    Leeds County,Ontario,Canada
    Posts
    988

    Default

    I’m hoping that I found the problem. After breaking the end off a sight tube again this morning I noticed that the bracket that supports the top of the tube is pulling the tube towards the pan too much. I removed the bracket,straightened it and rebent it 1/2” further away,see if that does the trick
    7th generation maple producer in sugarhouse built in 1892
    2x World Champion Maple Syrup Producer
    1250 taps on cv adapters
    Leader Vortex 3x14 with Max Flue and Revolution Syrup Pan,Enhanced Steam Away
    www.leggettmaplesyrup.com

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