Are you on tubing, buckets or bags? If tubing, with vacuum go for it, if buckets or bags, wait until you see a good pattern for 2 weeks out. By the way, for best sap flow you need freeze thaw cycles, it is best when you get days in the low to mid 40's and nights at 28F or below. You will likely never get that for 2 weeks in a row, from there you just need to guess. By the way, a night at zero or below is not bad in season, it helps the tree pull more sap up from the roots, ready for the next thaw.
Last edited by maple flats; 02-09-2020 at 01:01 PM.
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.