Koi Pond Filtration » Evolution Aqua

The Nexus Eazy is Evolution Aqua's exciting new filter system. It incorporates the industry proven Kaldnes Moving Bed technology coupled with the innovative Eazy mechanical filter.

Combined, they provide outstanding water clarity and quality, pump or gravity fed. Extremely easy to clean and maintain, with minimal running costs, the Nexus Eazy system is designed and built to last a lifetime.

How the Eazy works - The Kaldnes is retained in a stainless steel basket and has been proven to trap incredibly small particles of waste. Cleaning the Kaldnes is a simple matter of turning on the air tap to the settlement area thus agitating it and causing the waste matter to be dislodged from the media so it can be drained to waste.

Nexus Eazy systems are complete units and include the Nexus body, Eazy central vortex, air backwash line, air diverter valve, unionized ball valves to waste, and Kaldnes media for both the Eazy (static Kaldnes) and the bio-reactor (fluidized Kaldnes).

The Nexus 200 Eazy and Nexus 300 Eazy are the same system in 2 sizes for different pond volumes.

• Nexus 200 Eazy, 2640 gph max flow, for ponds up to 4700 gallons.
• Nexus 300 Eazy, 3960 gph max flow, for ponds up to 8900 gallons.

The Nexus Eazy is Evolution Aqua's exciting new filter system. It incorporates the industry proven Kaldnes Moving Bed technology coupled with the innovative Eazy mechanical filter.

Combined, they provide outstanding water clarity and quality, pump or gravity fed. Extremely easy to clean and maintain, with minimal running costs, the Nexus Eazy system is designed and built to last a lifetime.

How the Eazy works - The Kaldnes is retained in a stainless steel basket and has been proven to trap incredibly small particles of waste. Cleaning the Kaldnes is a simple matter of turning on the air tap to the settlement area thus agitating it and causing the waste matter to be dislodged from the media so it can be drained to waste.

Nexus Eazy systems are complete units and include the Nexus body, Eazy central vortex, air backwash line, air diverter valve, unionized ball valves to waste, and Kaldnes media for both the Eazy (static Kaldnes) and the bio-reactor (fluidized Kaldnes).

The Nexus 200 Eazy and Nexus 300 Eazy are the same system in 2 sizes for different pond volumes.

• Nexus 200 Eazy, 2640 gph max flow, for ponds up to 4700 gallons.
• Nexus 300 Eazy, 3960 gph max flow, for ponds up to 8900 gallons.

The Eazy Pod is now also available as the Eazy Pod Air . This product cobines the Eazy Pod with the all new EA Airpump 70 Kit. You get the Eazy Pod, a 70 lpm air pump, 4 port air manifold, 33' of air tubing, and two high quality air stones.

As a result of the extraordinary performance achieved with the Nexus Eazy system, Evolution has developed a version of the Eazy for smaller pond sizes. The Eazy Pod is a complete mechanical and biological filter system for garden ponds up to 5000 gallons or koi ponds up to 2600 gallons. Using the proven Eazy 200 with Kaldnes media, the Eazy Pod provides clear and healthy pond water for a host of applications.

• Complete system for smaller sized ponds
• Complete system for quarantine systems
• As a pre-filter for existing systems
• As a polisher after an existing system
• As a system for mid-water or skimmer circuits

The concept is simple and yet innovative. Water enters via the inlet (A) and flows directly to the outer chamber (B), which runs around the entire circumference of the Pod. Between chamber (B) and the central chamber (C) is a stainless steel perforated screen. These perforations are situated in the lower half of the screen and around its entire face. This means that when the water passes from the outer to inner chamber (B to C), a downward flow is created. This causes many of the larger solids to settle in the base of the outer chamber (B) due to the force of gravity.

This settling action combined with the size of the perforations will not allow large mechanical waste to enter the central chamber, thus acting as a first stage mechanical filter. The central chamber holds 30 liters of static K1 media. As the water enters the central chamber, the fine smaller solids become entrapped in the K1 media. After passing through the K1 media, the clean water then rises and overflows into the inner return pipe (D) of the Pod. From here it returns to the pond via the return outlet E.

The Eazy Pod filtration system gives water quality and clarity that surpasses all expectations. The nature and volume of the K1 media means that when static, apart from being a very efficient mechanical filter, there is more than enough surface area for beneficial bacteria to colonize. Therefore on a smaller pond, the Pod is an excellent complete filter. Plus, it is very easy to clean… simply direct air to central chamber to fluidize the media, the dump the waste via the supplied drain valve (F).