Gallons of sap per tap on 3/16 tubing

[Little Maple]

What's the average gallons of sap per tap are sugar makers getting on the 3/16 tubing?

[Ausable]

Little Maple - What did You average? - I'm interested. I use Drop Tubes to 5 gallon pails and averaged 6.5 gallons of sap per tap. I know Vacuum Systems get a whole lot more - but - curious how much more? ----Ausable-----

[Gary R]

I got about 33 GPT. It worked very well.

[Little Maple]

How many taps did you put on your 3/16 line?

[whalems]

33 GPT ??? that's close to a gallon of finished product per tap. awesome numbers if accurite:)

[Gary R]

You all can read all about it on this thread. http://mapletrader.com/community/showthread.php?17418-High-vacuum-in-gravity-tubing-research Thanks for asking Little Maple

It looks like UV Proctor had 36GPT this past season. It took me an average of 72 gal. sap to make one gal of syrup this season. It is disappointing that my accuracy is questioned on this topic.

[delivron]

With this past season I had producers tell me they reached as high as 1. Gallon per tap. I would suggest you pull the 2013 census report. That will give you some really good state averages. But the other question that needs to be answered is at what level of vacuum and that is not in the report. Yield increases aprox 5% for every inch of vacuum over 16 inches. So going from 16 in to 24 in of vacuum can result in about a 48% increase of sap.

[GeneralStark]

With this past season I had producers tell me they reached as high as 1. Gallon per tap. I would suggest you pull the 2013 census report. That will give you some really good state averages. But the other question that needs to be answered is at what level of vacuum and that is not in the report. Yield increases aprox 5% for every inch of vacuum over 16 inches. So going from 16 in to 24 in of vacuum can result in about a 48% increase of sap.

This thread is about yields with 3/16 tubing, but regardless higher vacuum certainly has the potential to increase yields, but it takes more than just increasing your pump size or vacuum levels at the releaser. A well designed tubing system and taphole sanitation is much more critical. My neighbors had 25" at the releaser and yielded about 12 gal/tap sap. This is with a poorly set up tubing system, old tubing, and CV2s. I yielded 27 gal/tap with a well designed system, 3 year old tubing, new drops, and seasonal spouts.