Daily feeding of the anaerobic bacteria.
During the operation of the filter it is necessary every day to provide a carbon based food for the anaerobic bacteria which is usually supplied in the form of alcohol. We recommended that you use Deltec Nitrate Fluid, which is a special blend of alcohols and other solutions and is supplied with the smaller units or available as a consumable product from your retailer.
For the larger models the rate of consumption of the Nitrate Fluid may become cost prohibitive and for these units it may be more economically viable to use a mixture of Vodka and RO water as a substitute. The Vodka should be mixed with RO water in a ratio of 1 part of Vodka to 3 parts of RO water.