The difference is clear at www.evolutionaqua.com
13
NEXUS 310 GRAVITY FED INSTALLATION
OPERATING YOUR NEXUS 310 GRAVITY FED
Once your Nexus is installed and plumbed in as instructed, you are ready to fill the Nexus
and begin filtering your pond water.
To fill your Nexus first you need to open all the valves before and after the Nexus.
The system should be filled until the water levels are equal.
Once the Nexus is full, you will notice that the K1 Media in the outer chamber,
will float on the surface of the water. In a pond containing fish the media will begin
moving completely within a week, this is perfectly normal.
Now your Nexus is full it is time to turn on your air pump to circulate the media making
sure the air valve to the outer chamber is open and the air valve to the Eazy is closed.
CLEANING YOUR NEXUS 310 GRAVITY 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 affected by stocking levels and feeding rates along with
other factors such as algae in the pond.
WHEN TO CLEAN?
You may also notice that the water level in the outer chamber – the
Biological stage – lowers as water is prevented from getting through the Eazy as quickly as
it is being pumped back into the pond. When this water level falls beneath the level of the
bypass pipe, this is the indication that you should clean the Eazy. Normally we would not
recommend 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.
Switch off your circulation pump.
2.
Close the inlet to the Nexus 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 to divert the air into the Eazy, close the air valve 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.
6. Close the waste valve (G).
7. Take out the slide plate
8.
We would recommend that you perform the cleaning process twice wherever
possible to ensure best results.
9.
Close the air valve, to the inner chamber and open the air valve to the
outer chamber.
10.
Switch on your circulation pump.
LONGER PERIOD OF TIME BETWEEN CLEANING
Regular cleaning of the Eazy is essential to maintain your pond at its best. Build up of
detritus in any pond filter can harbour pathogens, and other pollutants which may
harm your fish.
At times, you may want to leave your filter for longer than you would normally want
between cleaning, perhaps if you go on holiday. In these instances, your Nexus 310 incor-
porates a Bypass, which will prevent the bio stage from emptying, and therefore potentially
starving your pump of water, should your Eazy become full of debris. The filter bypass should
be turned 90 degree as per figs. 7.1-7.3, when you need to leave your filter for longer peri-
ods of time such as holidays etc. this will allow the water to bypass the eazy should it be
-