cheapest way is by ...
Published by Eros Kaw, Biocleaner Inc. - Chief Tech Support
cheapest way is by subscription. this is salinity between 11 to 12 ppt. cod of 40,000 and the color must be excess of 5000. with the proper tankage and piping, with no other electro mechanical capex, the total cost per m3 should be in the range of $2 given volume treatment.