DIY Maple Syrup Reverse Osmosis @samuelwiltzius

Uploaded February 2022 | Updated September 2026, 2 hours ago

***UPDATE*** ACTUAL FLOW WITH COLD SAP: 18.5 GPH sap to make 9.7 GPH permeate + 8.7 GPH concentrate (much lower output with cold sap versus warm water!)

This video shows the system I built from scratch. In the video is a review of how RO works, flushing the system, preparing it for storage between seasons, and a full parts list.

I will try to upload a follow video detailing how maple syruping 2022 went.

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

Batch #1 (first test run) - youtu.be/2H0JOCWsydA
Batch #2 (refinements) - youtu.be/f6iidXM7xAE

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

Ruger No 1 Accuracy Issues Solved!!! - it took a while…

Making a Gunsmith Lathe Barrel Spider (and threading for a suppressor).

$My RO froze! - (also Q&A and info on building my RO and blower) Off Grid Maple Syrup 2024 This was a record cold spell for boiling and it provided a number of new challenges. I also answer some common questions about maple syruping and provide information about my set up. Chapters: 01:39 End of Intro 02:32 Day 1 summary 03:41 Day 2 start 04:45 Starting an RO at 8°F 12:32 Q&A - pan boil depth 13:54 Q&A - sap preheater 14:50 Q&A - what would I change on the RO 15:50 Q&A - variable speed fire blower 19:02 Q&A - refractometer vs hydrometer 19:47 Q&A - firewood size and type 21:54 Q&A - spreadsheets and references 24:10 RO froze up 29:27 Day 3 start/finishing Variable Speed Blower Parts motor speed controller https://www.amazon.com/dp/B071NQ5G71?_encoding=UTF8&psc=1&ref cm_sw_r_cp_ud_dp_DWD1S96HCSKTFX25Y9M3 blower https://www.amazon.com/dp/B07S6FVBCL?_encoding=UTF8&psc=1&ref cm_sw_r_cp_ud_dp_6H497HCRCS67YMVJ5JBJ 12V transformer https://www.amazon.com/dp/B01461MOGQ?_encoding=UTF8&psc=1&ref cm_sw_r_cp_ud_dp_PGFHEGHDSGQ6SVSVXZB1 Useful Documents Data Spreadsheet link: https://offgridcabin.files.wordpress.com/2024/03/swiltzius-blank-sap.xlsx RO parts list link: sap-calculator.numbers-parts-list.jpg RO operation guide: https://offgridcabin.files.wordpress.com/2022/04/ro-quick-guide.pdf 500ml RO beaker chart: https://offgridcabin.files.wordpress.com/2024/03/ro-flow.pdf Hot Brix chart: https://offgridcabin.files.wordpress.com/2024/03/brix-hot.pdf$

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