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| Click On Thumbnail Image Below For Larger Photograph | |||
| Introduction To The CL Professional Range | |||
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Few
manufacturers in the world have put as much effort into designing a
flexible and good value range of multi-bay filters suitable for the Koi pond as
Cloverleaf, and how refreshing to not only know that they are British
but to acknowledge they offer first class technical support to
customers/end users. Key features of this well constructed compact
"CL" range are the
options of the filters being pump or gravity feed (meaning below
ground), whilst meanwhile being very simple to maintain. The
incorporation of vortex bays, and skilful use of mechanical and
biological bays using quality mediums encompassing good water flows are
further attributes that make the range a superb and sound investment.
For very large ponds all filters can be happily installed as pairs - linked
to separate pumps or bottom drains. All systems are supplied complete
with valves and waste kits, together with a heavy duty lid capable of
withstanding the weight of most pondkeepers. New For 2007: In pump fed installations the CL2, CL3 & CL4 can as an optional cost extra have a PSS (Particle Separation System) integrated into the first bay. These advanced models are known as ADTEC. For further details refer to New PSS Filter Range page. It is believed that the positive advantages of the ADTEC systems will become very popular in the near future to the point that standard pump fed CL models will only be available as a special factory order.
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| Below - Diagrammatic Section Through Filter | |||
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This drawing illustrates the general design concept to both the Cloverleaf “CL” and “Genesis” range. As can be seen key beneficial features are numerous, starting from the principles of up and down flow through the tanks thereby keeping the water in contact with the mediums for as long as possible. Apart from the advantageous separation and settlement of solids in the vortex bay, the generation of an “upflow” and the incorporation of settlement areas (with drain down valves) ensures that the filtration mediums stay cleaner for longer – thus promoting larger colonies of beneficial bacteria, and by default thereby establishing a healthier pond environment. The clever design layout of the vertical transfer ports also provides the highly useful bonus of being able to incorporate air stones (where desired) without the need for the pond to appear similar to a witch’s cauldron. | ||
| Below: Operational Cloverleaf CL2 | |||
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This image of a typical Cloverleaf CL2 (with lid removed) will better illustrate the option of adding aeration via a separate airpump and airstones. This technique is highly desirable where heavy fish loads exists, but alas it cannot be successfully executed in many other manufacturers filter systems. | ||
| Below: Cloverleaf CL1 - or CL1V | |||
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Size 660 x 660 x 560mm high. Suitable for Koi ponds up to 1,250 gallons (5,625 litres), or Goldfish ponds up to 2,500 gallons (11,250 litres). The 4 Bay CL1 unit comprises of the first bay fitted with mechanical brushes, Bay 2 acting as a biological chamber with its “Flocore” medium, Bay 3 with Japanese Matting as a high performance biological medium, and Bay 4 serving as the final biological/mechanical stage - incorporating foam and the highly proclaimed aqua rock/alfagrog. This system is also available as the “CL1V” with a vortex chamber and other bay mediums all as specified for the CL2 & CL3 models. Note:- Pipe inlet size 75mm (3") - Outlet 50mm (2"). | ||
| Below: Cloverleaf CL2 | |||
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Size 990 x 990 x 760mm high. Suitable for Koi ponds up to 2,500 gallons (11,250 litres), or Goldfish ponds up to 5,000 gallons (22,500 litres). This 4 Bay unit comprises of a first stage vortex bay, with Bay 2 being fitted with mechanical brushes, Bay 3 acting as a main biological bay with its “Flocore” medium (or alternative Japanese Matting), and Bay 4 serving as the secondary and final biological/mechanical stage - incorporating foam and the highly proclaimed aqua rock/alfagrog. Note:- Pipe inlet size 110mm (4") - Outlet 82mm (3"). | ||
| Below: Cloverleaf CL3 | |||
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Size 1220 x 1220 x
860mm. Suitable for Koi ponds up to 3,750 gallons (16,875 litres), or
Goldfish ponds up to 7,500 gallons (33,750 litres). General description as
for “CL2” filter. Note:- Pipe inlet size 110mm (4") - Outlet
110mm (4").
Note: CL1, CL2, & CL3 are supplied complete with heavy duty lid, together with waste valves and pipes.
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| Below: Cloverleaf CL4 | |||
Diagram |
Size 1600 x 1600 x
1200mm high. Suitable for Koi ponds up to 5,000 gallons (22,500 litres),
or Goldfish ponds up to 10,000 gallons (45,000 litres). As standard this
system is supplied without a lid, and without any filtration mediums – thus giving
the pondkeeper full flexibility in choice. A "CL4 Optional Media Kit"
is available at extra cost as shown on the diagram with 28 Brushes, Jap-Mat, Foam & Aquarock.
General description as for
“CL2” & “CL3” filters. Note:- Pipe inlet size 160mm (6")
- Outlet 100mm (4").
The site installation of the CL4 model is unique to the range, in that pressures on the casing welds brought about by the weight of water (approx 1 ton per bay without media) requires that the unit needs to be placed on a firm level concrete base, and partially encased in concrete to provide lasting stability and a long life. This applies regardless of whether the unit is pump or gravity fed, and the attached diagram illustrates the basics of what needs to be achieved. Should any further technical clarity be required do not hesitate to contact the Cloverleaf office. |
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| Waste Pipe & Valve Installation Guide | |||
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| In order to select the ideal filter size to match pond capacity and fish load etc please refer to the Filter Size Calculator page which sets out numerous helpful guidance notes. | |||
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