With my previous 2 ROs (Deer Run 375 and D&G 600), as I processed more sap and the membranes got closer to needing a wash, the pressure would climb and if I kept it going too long, the high pressure switch would shut the machine off. With my Leader Micro2, as more sap is processed, the pressure actually drops, and the concentrate output increases. Is there something wrong with it, or is this how the Micro is supposed to function? FYI, there is no high pressure switch on it.