It is a system for filtering, clarifying and maintaining healthy, clear pond water in a garden pond environment. A pond filter system is made up of three main items:
Filter – the filter works in two ways, mechanically and biologically. Mechanical filtration means removing the solid particles that cloud the water. Biological filtration removes the pollutants that can be harmful to fish.
UVC – an Ultra Violet Clarifier clumps together the algae that cause green water so that the filter can then remove it.
Pump – a solid handling pump will pump dirty water into the UVC and filter. The movement of water will also introduce oxygen into the water, which is needed both by the fish and the beneficial bacteria in the pond.