My ATI ICP test on my RODI water shows 12.79 µg/l of Silicon. I made the mistake of taking that sample from my Brute can that I had cleaned and just filled with all new RODI water instead of straight from the RODI. I have a Spectrapure Maxcap 90 with new sediment/carbon filters and membrane as of February. The Maxcap DI and Silicabuster DI are from last August and the Maxcap DI is still sending 0 TDS to the Silicabuster DI. TDS is 129-150 going in. I get 2 TDS out of the membrane. I have a 65 gallon tank so I have not used the DI's a huge amount.
So, question is, where did the Silicate come from? Could the brute have added it in some way? I cleaned it with citric acid, rinsed it multiple times, hand dried with a towel and and let it air dry for a few days before filling with fresh RODI. Could it be coming through the DI's even though TDS is 0? Lastly, is the 12.79 µg/l anything to worry about anyway? Not sure what to do besides waste 100 on new DI's.
So, question is, where did the Silicate come from? Could the brute have added it in some way? I cleaned it with citric acid, rinsed it multiple times, hand dried with a towel and and let it air dry for a few days before filling with fresh RODI. Could it be coming through the DI's even though TDS is 0? Lastly, is the 12.79 µg/l anything to worry about anyway? Not sure what to do besides waste 100 on new DI's.