please help, the windows aren't spotting yet I dont think!! I have ionics pro 5 system and the RO is filling the tank, reading from the water going in is 2ppm on the tds, the reading coming out after the DI is 14ppm!!!! can this be correct ? if not any ideas on possible cause. I have been flushing RO and backwashing softner as per instruction, if not i'll have to wait until Monday to talk to ionics. thanks all,Greg.