 Hozelock Trinamic Filters Hozelock Trinamic Filters are high-performance biological filters for heavily stocked fish and koi ponds up to 20,000 litres (5,000 gallons). Water enters the biomodule at high velocity, spinning the unique Kaldnes K3 Biomedia. This moving bed technology is widely regarded as one of the most advanced biological filtration methods. With the high overall surface area of the K3 media and the inclusion of a set of oxygen enriching Venturis, the biomodule holds a colony of beneficial bacteria far in excess of many filters of equivalent size. With the K3 continually bumping into each other, the weakest bacteria are constantly falling off thus speeding up the breakdown of harmful soluble pollutants as only the strongest, most efficient bacteria survive. The biomedia are self-cleaning - pond debris passes through to the foam module. Any sludge build-up at the bottom of the biomodule can be removed by simply opening the sludge drain. Solid matter is trapped in a series of fine cartridges in the foam module. An indicator alerts the user that the foams need cleaning. This can be done without the need to remove the foams. The resulting sludge can then be removed by opening the sludge drain. The water then passes through denitrifying bacteria which grow on the Cypripak Biomedia in the dark, still, final chamber located under the foam module. Clean and healthy water is then returned to the pond.
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