Hi all! I bought an RO system in december gone. The tds from it has gone from 8-13 when it was first being used to 36-63 now. This is surely too high? Im using resin a lot quicker now. I flush it regularly. Are the membranes shot already? Could i be doing something wrong? Any thought appreciated. This WFP business seems to be one expense after another! Seriously considering going traditional!