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Evolution Aqua NEXUS 220 - Troubleshooting

Evolution Aqua NEXUS 220
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TROUBLESHOOTING
K1 Micro is floating but K1 Media is not, why is this?
The K1 Media in normal conditions becomes semi-buoyant within 48 hours. However, the
K1 Micro (only in the Eazy) takes longer to absorb water. This can take up to one week.
The K1 Micro in the Eazy doesn’t move well during the cleaning cycle.
The reasons for this could be one of the following:
The air pump is not powerful enough (see Air Pump Recommendation on page 4)
There isn’t enough water in the Nexus – check that you used the cleaning pipe to
maintain the level on a pump fed system.
Check all air fittings and air line for leaks and blockages.
Please ensure that there is no more than 18 litres of K1 Micro in the Eazy. If the media
is not moving well enough you can take a few small handfuls out if needed.
I have an Ammonia and / or Nitrite reading.
A typical filter can take approximately 8 weeks to mature. During this time Ammonia and
Nitrite levels will rise and fall. This process can be accelerated by using PUREPOND.
If you still experience Ammonia and Nitrite readings after this period of time,
check the following:
• Nexus is adequately sized for the pond.
Check flow rate is correct - ensure the pond water is being turned over through the Nexus
every 2 to 3 hours without exceeding the maximum flow of the unit.
Check chlorine levels of tap water and pond water - ensure a dechlorinator is used on
mains water top ups.
• Ensure pond water pH is above 7. If it is above pH 7 keep it as stable as possible.
• Check feeding and stocking rates of pond.
I have an issue with green water.
Please ensure that an appropriately sized evoUV is installed on your system.
I have excessive blanket weed growing in my pond and filter maintenance is slightly
higher than normal.
Use a full course of Stop Blanketweed treatment to eliminate the weed and fine algae
particles. Normal filter maintenance will be resumed.
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