There is not enough information to support the recommendation of any specific filtration method, such as reverse osmosis or granular activated carbon, that can remove GenX from the water. Research on filtration methods is on-going and information will be shared when it is available.
Preliminary research suggests that the best method to remove GenX from water is with a reverse osmosis filter system. This method may pose problems for homes with septic systems. To date, filtering water through activated carbon or activated charcoal has not been proven effective at removing GenX.