I am running about 400ish taps all on 3/16 into a 3/4 mainline. The mainline is not vacuumed at all other than decent slope. Was wondering if the top of the hill end of the mainline should just be left open to allow it to vent for better flow.
Vent the main line or cap it off?
I am running about 400ish taps all on 3/16 into a 3/4 mainline. The mainline is not vacuumed at all other than decent slope. Was wondering if the top of the hill end of the mainline should just be left open to allow it to vent for better flow.
You'll want to cap it to keep bugs and other stuff out. The pipe doesn't need to be vented to flow good.
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!
Cap it, as the sap flows it will build up vacuum in the pipe. There has been many threads on here of people get 25" of vac on the tops of the mainline just using natural flow.
54 Acres bought in Sept 2010, hope for a lot of fun
Kabota 3400 w/ bucket
couple Husky chainsaws and a couple of Stihl
Big dream
2011 = 106 on gravity tubing, 100 bucket
2012 =700 vaccuum 100 gravity 80 bucket's
30" x 12' Vortex with Leader Revolution Max Raised pans
2013 = 1200 vac, 200 gravity, 5 buckets, buying from 300 buckets, 500 vac
Springtech RO 600 Deluxe
2015= 1800 all vac @ home, buying sap from 1200.
2017= 2200 all on vac. no longer buying sap
I was wondering if that was possible. Any idea on how many taps it took to make 3/4 start to create vacuum?Originally Posted by Potters3
I wouldn't worry about natural vac on a 3/4 inch mainline. If you want to add vac do a small diaphragm pump like a shurflo on the end of your mainline. That is what I have.
Camp Wokanda
Peoria Park District
2023 - 210 on 3/16 shurflo, sap storage shack w/ 1100 gallon tank - 123 gallons
2022 - 210 on 3/16 shurflo, homemade vac filter & water jacket canner - 104 gallons
2021 - 215 on 3/16 shurflo, added 2nd membrane to RO - 78 gallons
2020 - 210 on 3/16 shurflo, upgraded hp pump on RO - 66 gallons
2019 - 150 on 3/16 shurflo, Deer Run 125 dolly RO - 73 gallons
2018 - 120 on 3/16 shurflo, 2x6 raised flue w/hood, homemade arch w/ AUF & AOF - 34.5 gallons
I think the 3/4" mainline wouldn't form a vacuum since the key to a vacuum is a fully saturated small diameter line that doesn't allow air to flow by and release the upstream vacuum.
I do agree that you should put a cap on the top end to eliminate pests from entering the tube.
Ken & Sherry
Williston, VT
16x34 Sugarhouse
1,500 taps on high vacuum, Electric Releaser & CDL Sap Lifter
Wood-Fired Leader 30"x10' Vortex Arch & Max Raised Flue with Rev Syrup Pan & CDL1200 RO
https://www.facebook.com/pumpkinhillmaple/
Cap the end. You will not get natural vacuum on 3/4" line, the sap passes the air (gases). You can only get natural vacuum if the tubing is filled completely. If you want natural vacuum you need to use 3/16 lines and have good total drop in elevation. With 3/16 the sap will not pass the gasses, thus natural vacuum.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.
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