10" or the 7.5" full bank from leader you will have a bunch of syrup and you don't want filtering be your back up. Spend the money now to go to an air pump dont wast your time with a gear pump if your buying new.
2014 125 taps 16 gallons
2015 210 taps 49 gallons
2016 164 taps 75 gallons new 2X6 leader max flue and homemade AOF/AUF arch
2017 1500 taps 196 gallons RO added additions to building new tap lease
2018 1588 taps 276 gallons
upgrades for 2019 season 3 phase vacuum pump, stainless tank in woods, tubing replacement