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FAQ Search Results
How much media does NexusPlus have/need?
The Nexus 220+ comes with 18 litres of K1 Micro in the Eazy (inner chamber,) and 50 litres of K+Media in the outer chamber.
The Nexus 320+ comes with 20 litres of K1 Micro in the Eazy (inner chamber,) and 100 litres of K+Media in the outer chamber.
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Why is the water level in the Nexus outer chamber much lower than in the inner chamber?
• The pump could be too powerful, so the Nexus+ is being emptied before the pond refills it by gravity.
• There could be a blockage in the transfer port between the inner and chamber and the outer chamber. You need to back flush it. You can download...
What size pump do I need for my Nexus?
Maximum recommended flow on the 220 is 10,000lph and the 320 is 13,000lph, however suggested flow rates are lower. Slower is better for fine removal and clearer water. Aim to turn over your pond volume every two to three hours. The Evolution Aqua Varipump...
How does the Nexus Automatic Air Control Valve Box work?
This video will show you how the Nexus Automatic Air Control Valve Box works. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus Automatic Control Box.
How much water is in the Nexus+?
Nexus 220+
Total volume of water 510 litres / 112 UK gallons / 135 US gallons
Outer chamber 405 litres / 89 UK gallons / 107 US gallons
Inner chamber 105 litres / 23 UK gallons / 28 US gallons
Nexus 320+
Total volume of water 840 litres / ...
What is the weight of a Nexus filter?
Nexus+ 220 (without water) weigh approximately 70kg on a pallet and Nexus+ 320 weigh approximately 90kg on a pallet.
My Nexus is not draining to waste when valve is opened.
Remove the outside union on the waste ball valve, open the valve, if no water pours out the blockage is under the Nexus, carefully push a suitable stick (such as a cane) and release the blockage, you can also remove the Eazy and access the pipe from ...
How often do I need to change the media in my Nexus?
You should never need to change the media in your filter. You can add more to the outer chamber of your filter if required. Please see question 4 for more information before adding more.
How does the Nexus Automatic Waste Valve Relay work?
This video will show you how the Nexus Automatic Waste Valve Relay works. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus Automatic Control Box.
K1 Micro is floating but K+Media is not in my Nexus, why is this?
The K+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 Nexus 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...
Do I need an airpump for NexusPlus?
Yes, it powers the moving bed biological filter and is also vital to the cleaning process. You need an Evolution Aqua Air Pump 75 for a Nexus 220 and an Air Pump 95 for a Nexus 320. If you increase the amount of media in the outer chamber you may well...
How does the Nexus Automatic Control Box work?
Understanding the Nexus Automatic Control Box Video
This video will show you how the Nexus Automatic Control Box works. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus ...
How can I locate the fuse in the Nexus control box?
These are located alongside the timer blocks within their own hinged compartments. The fuses are all standard glass fuses; 10 Amp, 5 Amp, 2 Amp, 2 Amp from left to right.
Please see the image below, this is where you can locate the fuses.
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Please see the image below, this is where you can locate the fuses.
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My Nexus is blocked with media/debris between the eazy and the main chamber
To clear the block you will need to drain down the outer chamber and clear the kiss points with a small flat screwdriver.
You will then need to refill the filter, the media should float up so it can remove by hand.
You will then need to refill the filter, the media should float up so it can remove by hand.
How much water is drained to waste from my Nexus during a cleaning cycle?
In a Nexus 220+ 140 litres of water is drained to waste.
In a Nexus 320+ just under 200 litres of water is drained to waste.
Can Nexus+ be gravity or pump fed?
Yes, it can easily be adapted to either filtration method by simply swapping the supplied rubber boots.
How does the Nexus Automatic Inlet Plate Relay work?
This video will show you how the Nexus Automatic Inlet Plate Relays work. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus Automatic Control Box.
Can I retrofit a Nexus
It is possible to retrofit a Nexus. However this cannot be done for an Eazypod.
My media is not circulating as good as what it was in the outer chamber of my Nexus.
You will need to check to see if your Airpump is working as it should be.
The airline holes may have become blocked with limescale. To rectify this you will need to drain down the outer section and check the airline for any blockages.
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