Just throwing this out there for you all...keeping my taps in through this next week of cool weather (check local listings). If my sap is off, I take it down to sugar and my wife mixes it with some concoction of coconut oil and something else for a hand scrub that she sells for much more than I make on my syrup. Not that I do it for profit as I lose money every year, but the "off" sap is still good for her hand scrub and people love what she makes.
2014 - 8 taps, turkey fryer, 130 gallons sap, just under 2.5 gallons syrup.
2015 - 50 taps and counting.
2016 - 60 taps on 3/16 and a Bill Mason evaporator on order.
2017 - 115 taps on 3/16, homemade r/o.
2018 - 150 taps on 3/16, r/o a big help, but lots of leaks killing yield.
2019 - sticking with 150 taps or maybe less, focusing on good vacuum and less waste to increase yield. Doubling up my r/o, and made a vacuum filter that looks promising.