Evolution Aqua NEXUS 220 - How the Nexus 220 Works

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The Nexus filter is simple yet innovative.
Water enters the Nexus via the inlet into the
inner chamber which works as a basic vortex
allowing larger solids to settle out. The water
then passes through the Eazy where the finer
particles are removed at the mechanical stage
of filtration. From the Eazy the water passes
into the outer chamber where the biological
stage of filtration takes place using the
K1 Media Moving Bed.
The water then passes through the grill into
the Exit Chamber, where it is returned to the
pond through the outlet. The Eazy is cleaned
by diverting the air from the Outer Chamber
to the Eazy using the air valves. Waste is
then discharged through the larger waste
ball valve.
Figure 1.
HOW THE NEXUS 220 WORKS
OUTER CHAMBER
(Biological Stage)
INNER CHAMBER
WITH EAZY
(Mechanical Stage)
WASTE VALVE
(Large 1½”)
OUTER CHAMBER
MAINTENANCE
VALVE (¾”)
OUTLET
AIRLINE & VALVES
(12mm airline &
air valves)
EXIT CHAMBER
(Fitted with
overflow / by-pass
pipe running
through exit
grill plate)
INLET
WASTE OUTLET
& SETTLEMENT
AREA
Figure 2.