Uploaded April 2022 | Updated September 2026, 2 hours ago

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Armed with a larger 24VDC transformer the pump runs without issue this batch, an experimental home-made sap preheater was trialed, and the wood burner ran exceptionally well with the variable speed blower.

Complete recap of this year with tables, photos, and parts list on my blog: offgridcabin.wordpress.com/2022/04/17/maple-syrup-2022-year-of-the-ro

Links:

RO 500ml Chart:
offgridcabin.files.wordpress.com/2023/04/ro-flow.pdf
Brix Temperature Scale:
offgridcabin.files.wordpress.com/2023/03/brix-hot.pdf
RO Quick Guide:
offgridcabin.files.wordpress.com/2022/04/ro-quick-guide.pdf
RO Parts List:
offgridcabin.files.wordpress.com/2022/04/sap-calculator.numbers-parts-list.jpg

Batch one (previous video):

Boil time: 18h
Wood used 1 face cord
Gallons sap 285 gal
Gallons Syrup 6 gal
Brix sap (hygrometer) 2.15%
Brix sap (actual) 2.1%
RO run time pump 1 12h
RO permeate p1 GPH 7.95
RO water removed p1 (gal) 95.44
RO run time pump 2 8h 13m 48s
RO permeate p2 GPH 5.49
RO water removed p2 (gal) 45.14
Total RO water removed (gal) 140.59
Water removed from boil (gal) 138.41
Brix final (@ 218°F) 57
Boil rate (GPH) 7.69

Batch two (this video):

Boil time 17h 36m 53s
Wood used 0.75 face cord
Gallons sap 335
Gallons Syrup 9.5
Brix sap (hygrometer) 3.09
Brix sap (calculated after boil) 2.47
RO run time pump 18h 9m 56s
RO permeate GPH 9.72
RO water removed (gal) 177
RO concentrate GPH 8.72
Water removed from boil (gal) 149
Brix final (@ 218°F) 58.5
Boil rate (GPH) 8.5
RO preheater 12-14°F