The difference is clear at www.evolutionaqua.com
3
OPERATING YOUR NEXUS:
The Nexus filter is simple yet innovative. Water enters the Nexus via inlet (A) into the inner
chamber (B) which works as a basic vortex allowing larger solids to settle out. The water
then passes through the Eazy (C) where the finer particles are removed and the first step in
biological treatment takes place. From the Eazy the water passes into the outer chamber
(D) where the remainder of the biological treatment takes place using the K1 Moving Bed
Process (for further information see page 14 on K1 moving bed)
The water then passes
through the grill into
the Exit Chamber (E),
where it is returned
to the pond through
the outlet (F). Waste is
discharged through the
larger Ball valve (G).
The Eazy is cleaned by
diverting the air from
the Outside chamber
to the Eazy using the air
valves (H).
EAZY :
The Eazy is a stainless
steel vessel contain
-
ing a set volume of
static K1 media (40L
for Nexus 310) which
is located within the
centre chamber of the
Nexus. After water en-
ters the Nexus it rotates
around the Eazy in the
centre chamber with a
downward motion al
-
lowing the larger solids
to settle to the bottom of the chamber before passing through the slots of the Eazy into the
static K1 media. The water flows upwards through the K1 media where mechanical filtra-
tion takes place as any small particles are caught within the K1 media. The water then flows
through the slots in the centre column and into the outer chamber.
OUTER CHAMBER:
The outer chamber of the Nexus contains the K1 Moving Bed. This is where the final stage
of biological treatment occurs. Biological breakdown occurs through different strains of
bacteria living on the K1 media. These bacteria convert Ammonia and Nitrite into harmless
Nitrate. The amount of Ammonia and Nitrite produced in the pond is dependant on feed
rates and the type of food. For higher feed rates additional K1 media should be added into
the outer chamber (250g/day of average protein content food will be broken down by 50L
of K1).
HOW IT WORKS
C
D
E
F
G
A
H
B