Hydrosil will do testing of your current materials including Carbon, Activated Alumna, Hydrosil or any competing product. You will receive a report with 1 of the following comments:

Safe - Reanalyze in 90 days
Borderline - Change in 30 - 60 days
Change - Change in 30 days, breakthrough could occur quickly under plant "spill" conditions
Change Immediately - Change immediately

Call us for more details 1.800.PURPLE.1.