If you have at least 20' drop in elevation and 30+ is better, you just use the 3/16 to go down the slope from high to bottom, pulling snugly on the 3/16 so it holds onto the trees. Then at each tree, you put a 5/16 tap on your 5/16 drops and on the other end you use a 3/16 x 3/16 x 5/16 Tee (the 5/16 comes out the side). With good drop in elevation you can have 25-3 taps on a line like this, in fact testing has shown that 37 might be the max.
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.