nihadmajid
New member
Should any RODI water with a TDS of 0 have any calcium in it. Below are my readings for RODI. My calcium is very high=600+ in my tank. So I have tested water at all 3 levels.
TDS = 0, pH=6.3, NO3=0.1, PO4=0.00, CA=200, Alk=0
TDS = 0, pH=6.3, NO3=0.1, PO4=0.00, CA=200, Alk=0