01 — The essentials

What is the NanoJet™ System?

The NanoJet™ System is a chemical-free aeration and hydrodynamic mixing system engineered to be the essential first step in borehole water treatment across South Africa — for boreholes, potable storage, irrigation, industrial tanks, and wastewater. It uses the Venturi eductor effect to inject nano- and micro-bubbles into your tank, oxygenating and circulating the entire water body to remove iron, manganese and bacteria with no moving parts and no chemicals.

💨

Instant oxidation

Oxygenates raw borehole water the moment it enters the tank — precipitating dissolved iron and manganese and starving anaerobic bacteria before they can establish.

🔄

Total tank circulation

Eliminates stratification and dead zones. The whole tank volume is kept moving, oxygen-rich, and resistant to biofilm and bacterial growth — not just the water near the inlet.

🧹

Self-cleaning by design

The eductor draws from the bottom of the tank, lifting and suspending settled solids so sludge is flushed back into circulation instead of fermenting on the floor.

🌱

Zero chemicals, no moving parts

Passive hydrodynamics powered by your existing pump pressure. Nothing to dose, nothing to wear out — one of the lowest-cost, lowest-maintenance oxygenation technologies available.

02 — The physics, in plain English

How it works

Every NanoJet™ reactor is a hydraulic eductor: water from your existing pump is forced through a narrow Venturi throat, which accelerates it and creates suction that entrains air. That single mechanism does three jobs at once.

1

Acceleration & entrainment

Water velocity through the nozzle jumps from under 2 m/s to 15–25+ m/s, drawing in and shearing air into a dense stream of nano-bubbles (<200 nm) and micro-bubbles (10–50 µm).

2

Plume & entrainment ratio

The jet re-enters the tank and entrains surrounding water at roughly a 10:1 ratio, generating a large, slow-rising convection cell that mixes the entire tank — not just a local jet of turbulence.

3

Off-gassing & oxygenation

As bubbles rise and coalesce, they strip CO₂, H₂S and excess ozone out of the water while leaving it supersaturated with stable, long-lived dissolved oxygen.

Why the upward angle matters: reactors are mounted near the tank floor at an upward angle to maximise plume height and vertical gas contact — giving the best off-gassing and oxygen retention of any mounting orientation. A downward-angled secondary row can be added where sediment scouring is the priority. Contact us for engineering guidance tailored to your tank.
03 — What it fixes

Water problems the NanoJet™ System solves

Most of the contaminants and nuisances found in stored or borehole water share one root cause: low-oxygen, stagnant conditions. Restoring movement and dissolved oxygen addresses them at the source.

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Iron & manganese staining

Oxidises dissolved Fe²⁺/Mn²⁺ so it precipitates out instead of staining basins, laundry, and fittings.

🦠

Bacteria & biofilm

Suppresses iron bacteria, sulphate-reducing bacteria and anaerobic pathogens that thrive in stagnant, low-oxygen water.

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Sludge & sediment

The bottom-draw eductor action lifts and suspends settled solids so they're flushed and filtered instead of building up.

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Dead zones & low dissolved oxygen

Full-tank circulation eliminates stratification, keeping every litre oxygen-rich instead of only the water near the inlet.

👃

Odours & H₂S

Off-gassing strips hydrogen sulphide and other volatile gases as bubbles rise and burst at the surface.

⚗️

CO₂ & pH instability

Stripping dissolved CO₂ raises and stabilises pH, reducing corrosivity and improving downstream treatment performance.

04 — The range

The four NanoJet™ systems

All four systems use the same EcoShear™ mixing reactor at their core — what changes is how many reactors and delivery arms are configured together, to scale mixing power to your tank size.

NanoJet EcoShear reactor

EcoShear™

100 – 500 L

The core reactor itself — an award-winning Venturi mixing nozzle that can be used stand-alone in the smallest tanks, or combined into the Vortex, Fusion and Cyclone assemblies.

  • Single reactor, no moving parts
  • High-velocity jet stream mixing
  • Lowest-cost entry point
Best for: ponds, water features, small household or backup tanks.
NanoJet Fusion system

Fusion™

2,000 – 5,000 L

Two delivery arms, each carrying an EcoShear™ reactor, for stronger cavitation in medium-to-large tanks — and ozone-ready if you want to add disinfection later.

  • 2× EcoShear™ reactors, dual arm
  • Ozone-ready dosing point
  • Stronger bacterial elimination for tough water
Best for: farms, small commercial sites, large residential tanks with severe iron or bacteria.
NanoJet Cyclone system

Cyclone™

10,000 L +

A heavy-duty quad-arm configuration built around two EcoShear™ reactors, engineered for high-flow industrial and commercial pre-treatment.

  • 2× EcoShear™ reactors, 4-arm distribution
  • High-flow industrial aeration & mixing
  • Can replace chemical dosing in demanding applications
Best for: industrial and commercial pre-treatment, RO feedwater, cooling towers, process water.
ModelTank sizeConfigurationOzone-readyIdeal for
EcoShear™100 – 500 L1× reactor, no arm—Ponds & small tanks
Vortex™1,000 – 4,500 L1× reactor, single arm—Home & smallholding
Fusion™2,000 – 5,000 L2× reactor, dual armYesFarm & large home
Cyclone™10,000 L +2× reactor, quad armYesIndustrial & commercial

Pricing varies by configuration and current stock — see store.capewatertech.capetown for up-to-date pricing on every model and accessory.

05 — Get the size right

Tank sizing guide

Match your tank's capacity to the table below to find your system and the matching installation kit. If your tank falls between two ranges, size up rather than down.

Tank capacityRecommended systemRecommended install kit
Up to 500 LEcoShear™Reactor only — no assembly arm required
1,000 – 2,500 LVortex™Assembly kit for 1,000–2,500L tanks
2,500 – 5,000 LVortex™ or Fusion™Assembly kit for 2,500–5,000L tanks
5,000 – 10,000 LFusion™ or Cyclone™Assembly kit for 5,000–10,000L tanks
10,000 L +Cyclone™ (or multi-nozzle array)Custom-engineered — contact our team

Every installation kit includes a 140 µm inlet filter, ball valve, pressure gauge, Venturi injector, riser arm(s), 45° assembly, and all connectors needed for a complete plug-and-play install.

06 — Decision guide

Which model is right for you?

Still unsure? Match your situation below — or use the interactive product finder on the homepage for a personalised recommendation.

A pond, water feature, or small backup tank under 500L

Choose EcoShear™ — a single reactor is enough to keep a small volume oxygenated and mixed at the lowest cost.

A residential or smallholding borehole tank (1,000–4,500L)

Choose Vortex™ — the most popular all-rounder, handling iron, bacteria, and sludge in one compact unit.

A farm or large home tank with severe iron and bacteria, or you want ozone-ready disinfection later

Choose Fusion™ — two reactors deliver stronger cavitation for tougher borehole water.

An industrial, commercial, or municipal tank over 10,000L

Choose Cyclone™ — high-flow aeration and mixing capable of replacing chemical dosing entirely in demanding applications.

A tank with heavy settled sludge on the floor

Any model can be paired with a secondary row of reactors angled 45° downward for extra sediment scouring, alongside the primary 45° upward row for oxygenation.

07 — Getting it in the tank

Step-by-step installation overview

Every NanoJet™ system installs the same way, regardless of model — only the number of reactors and arms changes. This is a general overview; full fitting instructions are included with your kit.

1

Choose your kit

Match your tank size to the sizing table above and confirm you have the correct assembly kit for your model.

2

Fit the inlet filter, ball valve & pressure gauge

Install the 140 µm filter and ball valve on your supply line ahead of the reactor, with the pressure gauge positioned to monitor incoming pressure (2–6 bar operating range).

3

Connect the Venturi injector

Plumb the Venturi injector into the line — this is what draws in air to generate the nano/micro-bubble stream.

4

Attach the riser arm(s)

Fit the riser arm(s) to reach the correct depth in your tank — single arm for Vortex™, dual for Fusion™, quad for Cyclone™.

5

Position the reactor(s) at 45°

Mount each EcoShear™ reactor 10–20 cm off the tank floor, angled 45° upward, for maximum plume height and gas exchange.

6

Purge & pressure test

Open the supply, purge trapped air, and confirm the gauge reads within the 2–6 bar operating range for your nozzle size.

7

Run & observe

Watch for a strong, steady plume rising from each reactor. No moving parts means once it's running correctly, it needs no further adjustment.

Complete Vortex assembly kit

1,000L – 2,500L tanks

140µm filterBall valvePressure gauge

Complete kit for Vortex™ installations — filter, valve, gauge, Venturi injector, riser arm, 45° assembly and all connectors.

Complete Fusion assembly kit

2,500L – 5,000L tanks

140µm filterBall valvePressure gauge

Complete kit for Vortex™ or Fusion™ installations, sized for the larger flow and second reactor arm.

Complete Cyclone assembly kit

5,000L – 10,000L tanks

140µm filterBall valvePressure gauge

Complete kit for Fusion™ or Cyclone™ installations, built for higher-flow commercial and light-industrial tanks.

Prefer a professional install? We can connect you with a NanoJet™ installer in your area — just send us your name and suburb.

Request an installer →
08 — Common questions

Frequently asked questions

Does the NanoJet™ System need its own power supply?
No. It's a passive hydraulic eductor that runs off the pressure of your existing borehole or transfer pump — no separate motor, blower, or power connection required.
Do I need to add any chemicals?
No. The system works purely through aeration and mixing. It can be paired with an optional ozone or pH dosing port on Fusion™ and Cyclone™ models if you choose to add disinfection later, but no chemicals are required for it to function.
How much maintenance does it need?
Very little. There are no moving parts to service — periodically check the inlet filter for debris and confirm your operating pressure is still within range.
Can I combine multiple reactors for a bigger tank?
Yes. Beyond Cyclone™, multi-nozzle industrial arrays can be custom-engineered for tanks of 50,000L and above — contact our engineering team for a design.
Is NanoJet™ a registered product?
Yes. The NanoJet System™, including EcoShear™, Vortex™, Fusion™ and Cyclone™, are registered products of Cape Water Tech (Pty) Ltd.

Still need help choosing?

Our technical team can help you select and design the optimal NanoJet™ configuration for your specific water treatment needs.