Evolution Aqua Ltd
Evolution House Kellet Close Wigan WN5 0LP E44(0)1942 216554
8
NEXUS310 PUMP FED INSTALLATION
CLEANING YOUR NEXUS 310 PUMP FED
The central ‘Eazy’ section of the Nexus will collect all the debris and suspended solids that
come into the filter. In time you will find out how often you need to clean this, and
probably get into a routine to keep the filter working at its optimum. Each pond is different,
and the regularity of cleaning is affect
-
ed by stocking levels and feeding rates
along with other factors such as algae
in the pond.
WHEN TO CLEAN?.
The indication that
your filter requires cleaning is when you
see water flowing out of the overflow as
in Fig 3.2. Normally we would not rec
-
ommend leaving the filter uncleaned
more then 3 weeks. The filter can be left
longer if absolutely necessary but this
would not be best practice.
Cleaning procedure
1.
Close the valve at the Nexus inlet and immediately switch off your pump.
2.
Close the inlet to the inner chamber by inserting inlet slide-plate supplied with your
Nexus. Your Eazy is now isolated from the rest of the system
3.
Turn the air valve (H) to divert the air into the Eazy, close the air valve (H) to the
bio stage.
4.
The K1 media in the Eazy will now be agitated vigorously, or ‘boil’. As this happens,
all the debris trapped in the K1 will be released into the vortex area of the
central chamber.
5. After about 5 minutes, open the waste valve (G), allowing the waste to drain out
with the water Fig 3.3.
6. Take out the inlet slide plate.
7. Open the valve on the inlet, switch on your circulating pump.
8. Close the waste valve (G).
9.
Close the air valve (H), to the inner chamber and open the air valve (H) to the
outer chamber.
10.
We would recommend that you perform the cleaning process twice wherever
possible to ensure best results.
Fig 3.1 Normal operation
Fig 3.2 Needs cleaning
Fig 3.3