The taps per lateral depends on the slope. If you have steep slope, you can run long lateral with lots of taps, but if you don't have that luxury, laterals should be 100' max. with just 5-6 taps each for vacuum. Do not Tee 2 laterals together, the only tees should be the drops teeing into the lateral.
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.