Gimplar
New member
ok well my RO/DI unit is reading really wierd, my TDS meter started reading 1ppm output rather then 0ppm, so i figured it was due for a resin switch, so i did that and now i'm running at 6ppm output and 2ppm Input...how can my output be higher hten normal tap wateR? im confused...maybe i need to change out some other filters?