DoubleBrookMaple
12-29-2014, 01:42 PM
Hello to all and thanks for input...
My third year, and learning from the board, and the hard way as well. Installed gravity tubing last year, but needless to say, It needs improvement, and expansion. I won't go over that, but stick to my new installation. I will only have about 200-225 taps on this system.
I have attached an image with my 3 acres and elevations from my GPS and topo maps. I am building a vacuum system and would like some suggestions, some of which may be to late, as I already have the mainline shown in place.
I realize there a turbulence issues with steep mainlines, but according to Tim Perkins publication, http://www.uvm.edu/~pmrc/SapVac.pdf (See pg 13)
it is a "minor loss".
I can use gravity if needed, but will have plenty of vacuum available with my Gast 1023, at 10CFM. I am tentatively planning on four 3/4" mainlines that run uphill approx 125 feet. Two of these are shown, as they run continuously from the horizontal mainline. I could run only 3/16 or 5/16 gravity all the way down from the top trees, and only feed the vacuum mainline from the lower trees.
Thanks,
Eric
10215
My third year, and learning from the board, and the hard way as well. Installed gravity tubing last year, but needless to say, It needs improvement, and expansion. I won't go over that, but stick to my new installation. I will only have about 200-225 taps on this system.
I have attached an image with my 3 acres and elevations from my GPS and topo maps. I am building a vacuum system and would like some suggestions, some of which may be to late, as I already have the mainline shown in place.
I realize there a turbulence issues with steep mainlines, but according to Tim Perkins publication, http://www.uvm.edu/~pmrc/SapVac.pdf (See pg 13)
it is a "minor loss".
I can use gravity if needed, but will have plenty of vacuum available with my Gast 1023, at 10CFM. I am tentatively planning on four 3/4" mainlines that run uphill approx 125 feet. Two of these are shown, as they run continuously from the horizontal mainline. I could run only 3/16 or 5/16 gravity all the way down from the top trees, and only feed the vacuum mainline from the lower trees.
Thanks,
Eric
10215