I will continue to infuse CLO2 gas into water from the reaction of SCS + citric acid.
Citric acid does not gas into CDS, but 4% HCL will gas into CDS raising its TDS. If using citric acid you will make a cleaner CDS.
I haven't made CDS yet, but have some worries about producing it with citric acid, since it's often made from the fungus, which can result in health problems. So perhaps it's "cleaner" in a way, but would you say that citric acid is the best way (compared to HCL) if you add the factor of how citric acid often is made?