Since all of my sap flows directly to the sugarhouse and I do not use a meter to measure how much sap I have, mine is just an educated guess. I do measure the sap sugar %. My most important number is simply how many gallons I produce and how many taps I had to achieve that.
Unless we start to have more freeze thaw cycles I will not even be close to my last 2 yr average of 1/2 gal syrup/tap. If it stays like what I've had so far I might be lucky to do 1 qt per tap. I've only had 3 real good flow days. Yesterday was slow flow as the temperature climbed to 72 in my sap tank and I processed within 90 minutes of it hitting the tank until the incoming sap got to 70 F. I then shut down. Looks like a freeze tonight, that will help.
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.