I'd be interested in knowing what brand of solar/charge controller everybody uses on the solar powered Shurflo's. I've seen enough reviews about the cheaper PWM's ruining batteries to think twice about maybe just getting a better MPPT.
Also, are there any specifics I need to know about adding a recirc line from collection tank into the Shurflo. If the sap input to the pump is via a star fitting, could I just run another 5/16" from collection tank to one of the barbs on the star fitting? Are there any adjustments required to the recirc line flow?
2020 - 1st year - 13 black walnut taps - 4 bottles syrup
2021 - 50 taps, 22 black walnuts/28 red maples - 4 gallons syrup
2022 - 54 taps, 11 black walnuts/41 red maples, 20 on solar shurflo vacuum - 8.5 gallons syrup
2023 - 47 taps on 45 red maples, 43 on solar shurflo vacuum