I have made up to 28 gallons in a year, but get small batches frequently. I think my largest filtering/bottling effort was about 15 gallons (a week last year was nuts for sap flow). I mounted a cone filter in a 4-gallon bucket with a hole sawed in the bottom for the tip of the filter to just barely hang out of. I screwed in hooks near the top of the bucket to hook onto the loops of the filter. 7-8 prefilters go in the cone filter. Once I filter a batch, I remove a prefilter or two extra based on how they look, but then put the bucket into another 4-gallon bucket, unhook the loops and snap a lid on top and throw it into the chest freezer. This way I can just top up with fresh prefilters through the season and basically filter the whole season's worth of syrup with a single cone filter. The hardest part is to remember to get it out of the freezer to defrost before I need it again (it thaws pretty quickly).
If I get a few smaller boils and pull off finished syrup, I will let it settle in the cold until combining it all and dialing density and that really extends prefilter/filter life. But the filter in a bucket works really well.
42.82N
2015 - Small operation. 25 buckets. One excited 5 year old and one 35 year old that feels 5 again.
2016 - One year older. New Homemade 2x4 Arch, Smoky Lake Pan and looking at 52 maples, 17 box elders and 2 walnut trees.
2017 - Shurflo 4008 hooked to 42 stingy silver maples and a few Norways. A couple buckets on sugars and Norways. 10 box elders.
2018 - ...a few more taps.
2019 - ...more taps on 3/16 gravity. This spiral is heading downward in a hurry.
2020 - 4x400 RO - RB20 (uh-oh!)