An incorrect form of carbon was used to make some of the filter cartridges. The carbon used could contain nickel chloride, which releases nickel into the water and can be harmful if ingested.
Nickel chloride can cause abdominal cramps, nausea, vomiting, and diarrhea.
Cartridges containing nickel chloride, when initially used, cause the filtered water to taste metallic and turn green. Consumers who have used the affected filter cartridges and are presently displaying the above symptoms should advise a medical professional of possible ingestion of nickel. Pregnant women, dialysis patients, infants, small children, the elderly, and people with kidney problems or with a nickel allergy may be more sensitive to the effects of nickel chloride. CPSC and Ecodyne are not aware of any injuries involving this product. This recall is being conducted to prevent the possibility of injury.