<a href=showthread.php?s=&postid=11682053#post11682053 target=_blank>Originally posted</a> by jnarowe
RO/DI Water:
Water Test Summary
Ammonia (NH3-4) ........................Good ......................................... 0.004
Nitrite (NO2)................................Good ......................................... 0.002
Nitrate (NO3)...............................Good .............................................0.3
Phosphate (PO4) ..........................Good ........................................... 0.03
Silica (SiO2-3) .............................Good .............................................0.5
Potassium (K) ...............................Low.................................................0
Calcium (Ca).................................Low.................................................0
Boron (B) .....................................Low..............................................1.6
Molybdenum (Mo).........................Good .............................................0.0
Strontium (Sr) ..............................Low..............................................0.0
Magnesium (Mg) ...........................Low............................................. 139
Iodine (I¯)....................................Low............................................ 0.02
Copper (Cu++) ............................Good ........................................... 0.00
Alkalinity (meq/L)..........................Low............................................ 0.41
OK...so this is interesting eh? Even though I run my RO/DI through dual resins AFTER I get a zero TDS reading, it still has a lot of crap in it. Is it possible to have .03 PO4 in the tank and the RO/DI? Seems like the tank should be higher if I have that much in the purified water.
And how does that much magnesium get through? I am interested in comments!