Aqua Medic Cubicus CF Mode D'emploi page 11

3. Overflow system
Fig. 2: Overflow system Cubicus CF
1. Water inlet to the filter
2. Nut for bushing
3. Slide ring for bushing
4. Ball valve
5. Emergency overflow
6. Hose connection for re-circulation pump
7. Slide ring for bushing
8. Nut for bushing
9. Ventilation angle
10. Adjustable joint for return line
In the Cubicus CF, there is an overflow system behind the black panel to which the light is
mounted. The system consists of an overflow shaft with combs, a slotted pipe through which the
water enters the filter, an emergency overflow and a return line placed next to the overflow shaft.
In the cabinet, there is a ball valve that has to be slightly closed to control the water in the
overflow box. If the valve is closed to heavily or the return flow is blocked for some reason, the
water rises in the aquarium and flows to the filter tank through the emergency overflow. In such a
case, the ball valve has to be opened a bit further and all blockages have to be eliminated. If the
overflow makes loud noises, the ball valve has to be closed a bit more so the water is bottled up
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