I use a 1" us solid valve from Amazon, a laptop power supply to open the valve @ 20vdc. The only trouble I have is mid season if the valve is cold, then it's slugish. I clean with hot water then.
2024 - 57 Gallons - Short season, many and varied problems remedied in short order! - No buckets!
2023 - 38 Gallons - RO broke, Buckets didn't run, rebuilt vacuum pump mid-season, still made good syrup!
2022 - 52 Gallons - DIY RO, 50% less fuel, no late nights in the shack!
2021 - 48 Gallons - new pans, new arch, lots of new taps and tubing
2020 - 32 Gallons
2019 - 27 Gallons