with three evaps sitting side by side, and using the one in the middle, that must have been the old r/o. i did not understand why they filtered it twice. i would finish on the rig and filter to the drum or draw into finisher then filter to the galv drum. who is watching the wood rig when in the finish room the charlott auto draw?my back got sore watching all the movement of syrup by bucket. all and all was great to see another maple operation