Water enters the filter through a stepped hosetail (1)
And from here it passes into the UV chamber (2)
The UV chamber features a “turbulator” to ensure that the water is exposed correctly to the UV light produced by the UV bulb.
This clumps the algae that causes greenwater together.
The water then passes through a Venturi (3) to aerate it.
The aerated water passes into the bottom of the filter through plastic biomedia (4) where beneficial bacteria cleanse pollutants and remove fish waste.
*For hot climate under direct sunlight, filter capacity needs to increase by 60%.
For shallow water ( under 0.75m ), increase capacity by further 25%.