sorry I couldn't help with that, just got home a few ago. You know my drill this week.
you're doing great! Next year you'll be ready with the RO and then you can do more taps - especially the 3/16
John
All red maples:
2013/4 - A few taps and propane burner
2015 - 54 taps on bags and buckets, 2x3 Mason evaporator - 3.5 gallons syrup finished and bottled
2016 - 72 taps on home-built vacuum/mainline system, home built RO (2 - 2.5 x 21 membranes) - 9+ gallons syrup finished and bottled
2017 - 91 taps upgrade to RO (single 4 x 40 membrane) - 13 gallons syrup
2018 - 91 taps - 12 gallons syrup
2022 - Back after 3 years off, 106 taps on vacuum - 29+ gallons syrup