FAQ Search Results

Do I need a high pressure circulation pump for my K+ Advanced Filter?
No, one of the great advantages of the K+Advanced Filters is they produce very little back pressure, so you can use a lower wattage pump saving you money!
How do I replace the waste ball valve on my EazyPod
If you have one of the Mk1 EazyPods with a ball valve, you will need to buy a Single Union Ball Valve and a EazyPod Tank Connector.
How do I change the electromagnet on an Airpump?
To change the electromagnet on your airpump, follow the steps below or watch our YouTube video here:
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...
How often will I need to clean my Varipump?
The Varipump should be cleaned regularly, depending on the pond – every pond is different.  Check the pump monthly, and clean off any build up, and check that there is no debris in the impellor.  1-2 time per year, open up the pump and pull...
How do I turn off my evofeeder?
To switch off the unit, you will need to remove the battery.
How do I adjust the Double Union Ball Valve?
If you're finding it difficult to turn the valve during maintenance, you can use the video below to learn how to adjust it.
How much water is sent to waste in a K+Advanced Filter?
Approx 135L of water is sent to waste in a 20" FilterApprox 240L of water is sent to waste in a 24" FilterApprox 435L of water is sent to waste in a 30" FilterApprox 660L of water is sent to waste in a 36" FilterPlease note; these results are based on...
How do I replace the ballast box on an evoUV
To learn how to change the ballast on a 15W/25W, watch the video below.
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...
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 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. ...
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 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 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.
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.
How long is the standpipe for the return in a Nexus+ that is pump-fed?
The return pipe is 40.5cm long in the 220 and 46cm long in the 320
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 / ...
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 ...
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