By using impressed current through specific antifouling anodes, ions will dissolve and flow trough the protected system e.g. box cooler and prevent biological marine fouling.
The antifouling system dissolves the copper/aluminium or iron anodes by impressing current. When the anodes slowly dissolve, they are stopping the marine settling of organisms causing severe blockages, reduced flow rates and accelerated corrosion in critical systems.
One positive side effect of using antifouling systems, is that the area close to the anodes will be cathodically protected.