Sounds like everyone is about on the same page as us, holding out for a bit longer to see how the temps shake out...right now the (extra) long-range forecast has some nights in the teens the week of the 12th but then it looks real good after President's Day on the 19th.
We're not adding any new lines this year but plan to rig up one of those small Shurflo pump type vacuum handlers for the 100 or so taps on 3/16th using our old RO pump and then I'm hoping to have a two-post 4x40 membrane RO put together by the time we have any serious sap.
That's the plan at least...
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2015: 8 bucket taps (7 red, 1 sugar) on DIY barrel evaporator
2016: 13 taps (bucket and tube) on block arch and hotel pans
2017: SAME
2018: 25 taps on 2x3 flat pan and resurrected barrel arch
2019: 25 taps...same setup plus DIY 3x150gpd RO filter
2020: 50 taps, all buckets..."new" oil tank arch setup
2021: 100 taps (50/50 buckets/3-16 tubing) on 2x4 divided pan
2022: 150 taps (50/100 b/t) on 2x4 pan with sap warmer pan
2023: SAME
2024: 150 taps, added single-post 4x40 RO system