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Evolution Aqua Nexus Eazy 320 Koi Pond Filter System

  code:NEXUS320
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  • Nexus 320 filter system for ponds up to 34,000 litres
  • New design with K1 micro media
  • Removable centre 'Eazy' section for simple cleaning

Evolution Aqua have consistently been innovators in the koi pond filtration market and this new generation of nexus filter is no exception. The new design Nexus 320 filter system now has a new and improved Removable 'EAZY' filter with a more efficient slot patten with new K1 micro filter media for improved mechanical filtration.

The Nexus 320 filter has been design for pump fed and gravity fed koi pond systems of up to 34,000 litres (7,500 gallons). This high capacity mechanical and biological  filtration system has a relatively small footprint considering the volume of water it can deal with.

How a Nexus Works

A Nexus is a simple yet innovative filtration system, water enters via the Nexus inlet and into the inner chamber which acts like a Vortex to settle out the larger solids. Water then passes through the 'EAZY' where the finer particles are removed during the mechanical part of filtration via 'static' Micro K1 media (The 'EAZY' is the centre section of the nexus filter which can be removed for simple cleaning). From the EAZY, water passes to the outer chamber where the biological stage of filtration takes place using a 'moving bed' of K1 media. Water then enters the exit chamber through a grill and back into the pond. There are 2 drain off valve for flushing the filter chambers to waste during the cleaning cycle.

The 'EAZY' is a cylindrical container in the centre of a Nexus that contains a 'static' 20 litres of Micro K1 filter media for mechanical filtration and to remove the finer solid particles. The Eazy is removable if required.

The 'Moving bed' outer chamber contains standard size K1 media that is agitated by air movement pumped into the nexus 320 via an air pump. There is a perforated ring around the bottom of the outer chamber where air is blown through creating the 'moving bed', this helps increase oxygen level within the filter and improves the filtration process of the Nexus.

Cleaning the Nexus

The cleaning process for your Nexus 320 filter will vary depending on if you have a pump fed or gravity fed installation, please refer to the PDF manual for full details. An air pump is required to create the 'moving bed' in the Nexus and also for the cleaning of one. When cleaning air is diverted in the bottom of the 'EAZY' to agitate the Micro K1 media and to loosen off any collected particles. The larger waster valve is then opened to empty the inner chamber and EAZY, this process can be repeated until the Eazy is clean.

Specification

  • Maximum pond size 34,000 litres - 7,500 gallons
  • Maximum system flow rate 13,000 litres per hour - 2,859 GPH
  • Water volume held in the Nexus 320 840 litres - 185 gallons
  • Micro K1 media supplied 20 litres for 'EAZY'
  • K1 media supplied for bio chamber 100 litres
  • Footprint 1320mm(W) x 1025mm(H) x 1430mm(L)

An additional 200 litres of K1 media can be purchased for the Evolution Aqua Nexus 320 filter system to increase the capacity of water it can maintain up to it full 34,000 litre potential.

No air pump is supplied with this filter as the size required depends on the amount of K1 media that is used within the filter, see below for a guide to the air pump sizes

  • 100 litres of K1 in outer chamber(as supplied with from standard) - Airtech 95
  • 100-150 litres of K1 Airtech 130
  • 150-300 litres of K1 Airtech 150

All extras are available to purchase from Discount Leisure Products. If you have any questions please feel free to contact us to discuss your requirements.

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