Evolution Aqua Nexus 220+ / 320+ Automatic Cleaning Kit – Pump Fed
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The Evolution Aqua Nexus 220+ / 320+ Automatic Cleaning Kit – Pump Fed automates the cleaning cycle of pump fed Nexus 220 and 320 filters manufactured from 2006 onwards including the Nexus 210 and Nexus 310. The newer Nexus 220+ and 320+ models are supplied auto ready for simple installation of this upgrade. It provides programmable Eazy chamber cleaning to maintain consistent mechanical filtration and reduce manual maintenance.
£579.95 (inc VAT)
Evolution Aqua Nexus 220+ / 320+ Automatic Cleaning Kit – Pump Fed
Automatic Cleaning Upgrade for Pump Fed Nexus 220+ and 320+ Filters
The Evolution Aqua Nexus 220+ / 320+ Automatic Cleaning Kit – Pump Fed automates the cleaning cycle of compatible pump fed Nexus filtration systems. Instead of manually closing ball valves, switching pumps off and adjusting air flow, the system controls each stage through a programmable control unit.
This kit fits Nexus 220 and Nexus 320 filters manufactured from 2006 onwards. The newer Nexus 220+, Nexus 320+, Nexus 220+ Ti and Nexus 320+ Ti models are supplied auto ready, which allows straightforward installation of the automatic cleaning system.
Once installed, you can programme cleaning cycles at fixed intervals. Alternatively, you can activate a cycle manually whenever required. Therefore, the filter maintains consistent mechanical performance while significantly reducing hands on maintenance.
How the Pump Fed Automatic Cleaning Cycle Works
The pump fed version follows a structured cleaning sequence to maintain efficient Eazy chamber performance.
Firstly, the timer activates the cleaning cycle. The control box immediately switches off the circulation pump, which stabilises water levels inside the filter.
Next, the system redirects air from the biological chamber into the Eazy chamber. As a result, the increased air agitation lifts and separates trapped solids from the K1 Micro media.
Once agitation completes, the automatic waste valve opens and discharges dirty water to waste. During this stage, the Eazy chamber drains fully, ensuring thorough debris removal.
After flushing finishes, the waste valve closes. Finally, the circulation pump restarts and the Nexus returns to normal filtration mode.
Because the system manages each stage electronically, it delivers consistent cleaning performance and removes reliance on manual operation.
Compatibility and Installation
This kit works with pump fed Nexus 220 and Nexus 320 filters manufactured from 2006 onwards. However, it is not suitable for gravity fed systems.
The Nexus 220+ and Nexus 320+ models come auto ready, so installation remains straightforward.
The cleaning interval is factory set to every 3 days. Nevertheless, you can adjust the frequency depending on fish stocking density, feeding levels and seasonal waste production. For example, heavily stocked koi ponds may benefit from more frequent cleaning during peak feeding periods.
By automating the Eazy chamber cleaning sequence, the Nexus Automatic Cleaning Kit – Pump Fed maintains stable mechanical performance and significantly reduces manual intervention.
What Is Included
- Main programmable control box
- Automatic waste valve
- Air pump control module
(Note: The pump fed version does not require an inlet slide plate.)
Key Benefits
- Fully automated Eazy chamber cleaning
- Eliminates manual ball valve and pump operation
- Adjustable cleaning intervals
- Approximately 10 minute cleaning cycle
- Designed for pump fed Nexus installations
- Improves mechanical filtration consistency
- Reduces routine maintenance workload
- Compatible with Nexus 220+ and Nexus 320+ auto ready models
Technical Specifications
- Compatible with: Nexus 220 and Nexus 320 pump fed models 2006 onwards
- Cleaning cycle duration: Approximately 10 minutes
- Factory cleaning interval: Every 3 days adjustable
- Installation type: Pump fed systems only
- Power requirement: Mains connection
Matching the aeration system
Aeration works best when the pump, airline and diffuser layout are matched together. Long airline runs, narrow pipe, deep water and too many diffusers can all reduce the airflow that actually reaches the pond. It is better to spread air sensibly across the system than to force everything through one unsuitable point.
Use sinking airline where pipework will run through the pond, keep the air pump dry and ventilated, and allow access for filter cleaning or diaphragm servicing. On koi ponds and larger water bodies, a balanced diffuser layout can improve oxygen distribution and circulation without creating unnecessary turbulence in one area.
Maintenance and compatibility checks
It is worth checking the supporting parts at the same time as the main product. Hose size, pressure pipe, valves, unions, UV units, filter inlets, air manifolds, spares and cleaning access can all affect how well the final system works. A correctly matched installation usually performs better and is easier to maintain than one built from parts chosen separately.
Aeration setup notes
Evolution Aqua Nexus 220+ / 320+ Automatic Cleaning Kit – Pump Fed should be chosen as part of the complete air system, not just by litres per minute. Airline length, airline bore, diffuser depth, manifold taps and back pressure all affect the real airflow that reaches the pond or filter. A well matched aeration system runs more quietly, puts less strain on the pump and gives more dependable oxygen support.
- Use suitable airline size for the pump output and distance involved.
- Keep the air pump dry, ventilated and protected from flooding.
- Spread airflow across multiple diffusers on larger ponds where possible.
- Check diaphragms, filters and diffusers during routine servicing.
For koi ponds, moving bed filters and warm weather aeration, consistent airflow is often more useful than simply oversizing the pump. Balanced diffuser placement gives better circulation and helps avoid stagnant areas.
Helpful links and compatible products
Use these links to plan the rest of the system around this product. The right pump, pipework, UV, air supply, media or spares will make the installation easier to set up, maintain and service.
- View the full Evolution Aqua range
- Read the Evolution Aqua Nexus pond filter guide
- Browse Evolution Aqua Nexus filters
- Match with Evolution Aqua Varipumps
- Add Evolution Aqua evoUV clarification
- Choose an Evolution Aqua Airtech air pump
More useful ranges and guides
These related ranges and guides may help you compare options, choose the right accessories and plan the full pond system rather than viewing this product in isolation.
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