3/16 spouts

[sugarsand]

I'm already thinking about next year and what we need to get. I've heard it mentioned that 3/16 spouts may be available soon. Has anybody got the lowdown on this?

Sugarsand

[ryebrye]

I'm already thinking about next year and what we need to get. I've heard it mentioned that 3/16 spouts may be available soon. Has anybody got the lowdown on this?

Sugarsand

I've heard second hand that CDL and D&G would make 5/16 spouts for 3/16 tubing (5/16 hole do go directly on 3/16 tubing)

I asked a CDL rep if he knew anything about this and he said "I'll know more after the open house" - I clarified that if he knew anything he wouldn't be able to say anything until after the product is announced at the Quebec open house in may.

D&G might be more open about it. You could call then and ask.

My wish list is more rigid 3/16 tubing (though more rigid tubing might not grip the fittings as well as the current d&g stuff does) and more color options. (Gray would be great - green would be better. Lower visibility for the summer months or year round would be a help for taping suburban woods)

[WESTVIRGINIAMAPLER]

Makes more sense to make top of 3/16" T with 5/16" barb so you can use 5/16" for droplines. This would keep things more standard.

[ryebrye]

I'm already thinking about next year and what we need to get. I've heard it mentioned that 3/16 spouts may be available soon. Has anybody got the lowdown on this?

Sugarsand

CDL handed out samples at their open house.

Pics are in a thread on sugarbush info http://www.sugarbush.info/forums/tubing-tapping-vacuum-systems/3134-3-16-spouts-3.html

[palmer4th]

Did anyone else read the article in the maple news about 3/16? It did not seem to put as much emphasis on elevation change as it did on having 30-40 feet of run after your last tap? I was always under the impression that you needed significant elevation change?

[GV2]

Here is a cut and paste from Tim Wilmot's reponse to a question I asked him on this subject:

"If you can get about 35' elevation between the last tap and the tank, or the bottom of your lateral line (this could also be where it joins a mainline) then that should give you the maximum vacuum at your lowest tap. Even if you can't get this amount of difference in elevation at the bottom, I wouldn't worry about it. The actual length of the line below the last tap doesn't matter."

I do not get the digest you mentioned. Can you tell me more about what it said regarding this subject.

[collinsmapleman2012]

I actually wsa hoping for 3/16 saddles. we are looking to add on more 3/16" with a 1/2 inch mainline for someone near me, would be nice to have everything for it in 3/16

[Thompson's Tree Farm]

At the open hous, D&G rep told me they were trying to do a 3/16 saddle manifold.

[sharrco]

I'm already thinking about next year and what we need to get. I've heard it mentioned that 3/16 spouts may be available soon. Has anybody got the lowdown on this?

Sugarsand

Yesterday Local D&G in Georgia VT advised July.

Sharrco

[DrTimPerkins]

I do not get the digest you mentioned. Can you tell me more about what it said regarding this subject.

Go to http://www.uvm.edu/~pmrc/ On the right side, in the "Recent Publications" section, there is a link to that paper about half way down the list titled "High Vacuum in Gravity Tubing"

[maplerookie]

Go to http://www.uvm.edu/~pmrc/ On the right side, in the "Recent Publications" section, there is a link to that paper about half way down the list titled "High Vacuum in Gravity Tubing" I read that article or maybe it was his paper anyway there was a lot of data as well as good information. it looks to be very promising for producers that have some slope and dont want to use vacuum or cant use vacuum for whatever reason.
gravity

[GV2]

Thanks Tim. Indeed I have read that article a few times in the past. I thought perhaps the post was referring to another source of info. What I am still not understanding is the physics of the what we all will be trying to achieve in the tubing from the last/lowest tap to the storage tank/mainline. The question is the relationship of elevation drop and linear distance. I know we need a drop to keep the flow going. I know we need a column of sap to form the suction. When you all say we need a good drop in elevation is that because we need a reasonable atmospheric pressure delta? I kind of doubt it. Is it a good rate of speed of the sap in that section of tubing we trying to achieve? What threw me was that the post suggested that article said that elevation did not matter as long as you had 30 or 40 feet of tubing. If he is referring to the article you linked then I think he misread the information which implied 30 to 40 feet of drop. In any case in my 3/16 experiment next year I will have at best a 15 foot drop over 160 feet from the last tap. We will see what happens!