Sap temperatures can very a great deal due to a variety of reasons, length of mainlines, color of mainlines, position and or location of tanks, length of time sap sets before being processed, etc. I've gathered sap that was so cold that it was frozen on the surface to sap that was over 80 degrees. When we used to run the old style Filmtec BW membranes(brackish water), temperature affected the output of the RO signicantly. But, we switched several years ago to Filmtecs NF 70 membranes and we no longer have that problem. If my sap is 38 degrees or 75 degrees, my RO still eats 850-900 gallons an hour. Only a very low sugar content will lower these numbers. I should also state that with the old style membranes, you adjusted your machine to a specific pressure and you got what you got as far as production goes(our pressure with the old Coster machines was 500 psi). With the NF membranes, you adjust your machine to certain flow rates so long as you don't exceed 500 psi, and we always get our 850-900 gph.
shrunken producer, from 8,000 taps to 4,000 to 5800 to 9500 to 11,000 vac
5x16 woodchip fired evaporator with 5x10 max flue and 5x6 revolution front pan
CDL 20+ RO
Double 10"filterpress
sp-11, bb2, airtech L63, L160, L230 vac pumps
CDL low profile electric releaser
MES 8000 electric releaser
CDL 4000 tap mechanical releaser