If i am correct in understanding the process! After the pre filters, (Softener caddy, carbon and micron) , then after the RO the inline duel monitor reading I am getting is. IN 12 ppm and OUT 000ppm . The DI I believe is doing its job but from experience of the last filter the way it has already started to change color it will not continue to produce 000 pure for much longer? Maybe I am paranoid and expecting too much! I have a pressure booster pump which fills at. 70/85 psi taking just under. 3 hrs to fill 400ltrs
Any guidance greatly appreciated.