We let ours settle out. Took a stainless stock pot and drilled a hole about 1/2 inch from the bottom. Put a brass valve in the hole. Let 3 gallon of syrup sit one or two days. (that's how big the pot is) usually the niter is below the level of the valve. Draw off slow otherwise you suck some niter up. If the niter is to high gently tip the pan away from the valve. If it's warm syrup when you put it in the pan settles fairly fast. Only issue is you need to reheat to bottle or we just freeze what syrup we do.
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2019: tapped 2/20/19, 92 taps on buckets
2018: tapped 2/11/18, pulled 3/27/18 75 taps on same buckets 'Optimizer' inverted filter rack =30.5 gallons finished syrup
2017: tapped 2/5/17 fuel oil tank evaporator two 18"x28" flat pans, 50 taps on drop lines/Buckets, Small scale RO =11 gallon syrup
2016: tapped 1/25/16 1st year, 25 taps on buckets, copper kettle over a fire =4.5 gallon syrup
6x4 gator sap collector and kid hauler