Installation Of The Filtering Materials - Newa NKF 250 Manual De Instrucciones

accumulates in the specific bottom section, which allows to avoid clogging up of the sponges, thus prolonging the operating life;
• high-strength coarse-pored sponges, which produce a mechanical effect against contamination, trap particulates, such as
fish excrements, uneaten food, etc. The highest wear resistance of the fibers ensures withstanding extreme pressure of the
contaminating agents, and at the same time enable proper transition of water to other stages.
BIOLOGICAL FILTRATION:
• this stage involves bacteria colonies which transform organic nitrogen compounds into nitrites, and then into nitrates.
It is possible due to porous rings NEWA AQUA Microceramic, developed for achievement the best relation between surfaces
taking part in the filtration process, and the filling volume. In fact, the reduced size and the highest degree of porosity
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enable accommodating of double amount of the bacterial flora, as compared with standard ceramic elements, which ensures
optimization of the biological filtration.
• NEWA Kanist provides the highest level of the biological filtration. Every external filter consists of up to five sponge layers of
various mesh-size composition, from large pores to smaller ones. The increased total area of the sponges makes NEWA Kanist an
ideal environment for nitrifying bacteria, ensuring their exponential growth.
CHEMICAL-ADSORBENT FILTRATION:
• this stage is intended for water purification and removal of unpleasant odour and colour by peculiar NEWA AQUA Carbo-Active
Pellets, super-activated coal of mineral origin. A great amount of pores and increased specific area ensure the high physical and
chemical adsorbability, attracting and binding various substances both to its external and internal surface. Due to the structure
of the damage-proof bag, it is easy to install and remove it, avoiding occasional damages, while the special cell design prevents
the bag plugging and contributes to water ingress into the coal mass.
ATTENTION: IN ORDER TO MAINTAIN THE PERFORMANCE CHARACTERISTICS OF NEWA KANIST, IT IS RECOMMENDED TO USE
ORIGINAL FILTERING MATERIALS AND SPARE PARTS NEWA®.

INSTALLATION OF THE FILTERING MATERIALS

The filtering materials are stored in box with NEWA Kanist filter accessories. To install them properly, observe the following
instructions:
1. Detach the rotor unit from the filter case, unbuckling four clips, pressing the notches located on the bottom of the clips (fig. 3).
Remove the rotor unit by lifting it by it the grooves located across its perimeter, and put on a flat surface.
2. Remove the cover from the baskets unit for filtering materials, inserting fingers into the corresponding openings to facilitate
the operation (fig. 4).
3. Take out all baskets with the corresponding grip and put them on a flat surface.
4. The first basket: take out NEWA Aqua Carbo Active-Pellets from the accessories box, and place them between the layer of white
fiber and fine-porous black sponge (1 microperforated bag for models KANIST 250 and 350, 2 microperforated bags for models
KANIST 450 and 700). Make sure that they lie flat and do not block the holes intended for circulation of water from the aquarium.
Place the white fiber layer back (fig. 5). ATTENTION: DO NOT OPEN THE MICROPERFORATED BAGS.
5. The second basket: take out the remaining NEWA Aqua Carbo Active-Pellets from the accessories box, and place them on
fine-porous black sponge (2 microperforated bags for models KANIST 350, 450 and 700). Make sure that they lie flat and do not
block the holes intended for circulation of water from the aquarium. Place the white fiber layer back (fig. 6). ATTENTION: DO NOT
OPEN THE MICROPERFORATED BAGS.
6. The third and the fourth baskets: take out the bags with the porous rings from the accessories box, open them, and spread the
rings uniformly over the coarse-pored blue sponge (models NEWA Kanist 350, 450 and 700). ATTENTION: the above described is
also valid for the second basket NEWA Kanist 250 and the fourth NEWA Kanist 700.
7. With the aid of the corresponding grips on each basket, rinse the filtering materials and the sponges where they are located
with plenty of running water.
8. Install the baskets back into the filter case. Make sure that the baskets are arranged one above the other and do not block
water access to the suction tube (fig. 7).
9. First, install the baskets with the porous rings and coarse-pored white sponge, then install the baskets with the activated coal
and fine-porous black sponge, and finally install the basket with the white fiber for fine filtration (fig. 8). ATTENTION: it is vitally
important for the last basket to have the largest opening for water circulation, since it serves as junction of the filter with the
rotor unit by the internal connective cylinder.
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