Clean, filtered and UV-treated water throughout your home

The Waimana Pure III is a compact whole-house water filtration system designed to deliver clean, great-tasting and UV-treated water to every tap in your home.

Combining three stages of filtration with a powerful 33W UV chamber, the Pure III helps remove sediment, improve taste and odour, and provide chemical-free protection against harmful microorganisms. With a flow rate of up to 30 litres per minute, it's ideal for medium-sized households, rainwater tanks, bore water supplies and mains water connections.

Designed for straightforward installation, the system arrives assembled on a wall bracket and connects using standard 1-inch / 25mm BSP fittings with a standard 240V power supply.

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Choose Your Configuration

Pure III

The standard Pure III is designed for indoor or sheltered installations. Its compact wall-mounted layout makes servicing simple while delivering reliable whole-house filtration and UV protection.

Pure III Shield

The Pure III Shield provides the same filtration performance, UV treatment and flow rate, but includes:

• Protective enclosure
• Two pressure gauges
• Suitable for indoor and outdoor installation

The pressure gauges make it easy to monitor filter performance, helping you identify when cartridges are becoming loaded and ready for replacement.

Both models provide identical filtration and UV treatment—the only differences are the enclosure and monitoring features.

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Why Choose the Waimana Pure III?

Three stages of filtration

Water passes through three filtration stages before UV treatment, improving clarity, reducing sediment and enhancing taste and odour.

Chemical-free UV protection

The 33W UV chamber helps protect your household water against harmful microorganisms without adding chlorine or chemicals.

Flow-Activated UV Technology

Unlike traditional UV systems that run continuously, the Pure III only powers the UV lamp when water is flowing.

Benefits include:

• Lower electricity use
• Extended lamp life
• Cooler water inside the chamber
• Treatment only when needed

Compact design

The Pure III is designed to deliver whole-house filtration without taking up unnecessary wall space, making it ideal for homes where installation space is limited.

Great tasting water

The carbon block filter helps reduce unwanted tastes and odours while improving the overall quality of your household water.

Designed for New Zealand homes

Suitable for:

• Mains water
• Rainwater tanks
• Bore water
• Medium family homes
• Lifestyle properties

Three-year manufacturer's warranty

The Pure III is backed by a 3-year manufacturer's warranty covering the UV chamber, filter housings and workmanship.

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How the Treatment Stages Work

Stage 1 — 20 Micron Polypleated Sediment Cartridge

Captures larger sediment, dirt, rust and suspended particles to protect the finer filtration stages.

Stage 2 — 1 Micron Polyspun Sediment Cartridge

Removes fine sediment and silt down to 1 micron, improving water clarity before carbon filtration.

Stage 3 — 5 Micron Carbon Block Cartridge

Helps improve taste, odour and overall water quality while removing finer particles.

Stage 4 — 33W UV Treatment

The filtered water then passes through the 33W UV chamber, providing chemical-free microbiological treatment before reaching every tap. The technical sheet specifies a 33W UV lamp delivering 30mJ/cm².

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Best Suited For

The Pure III is ideal for:

• Medium-sized homes
• Families of 3–4 people
• Rainwater tank supplies
• Bore water supplies
• Mains water
• Homes wanting improved taste, odour and sediment reduction
• Whole-house UV protection

If you require higher flow rates for larger homes with several bathrooms, a larger-capacity system may be more suitable.

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Key Specifications

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Pure III vs Pure III Shield

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Installation

The Pure III arrives pre-assembled on its wall bracket for easier installation.

It connects using standard 1-inch / 25mm BSP fittings and requires a standard 240V power supply.

A licensed plumber is recommended. We also recommend installing isolation and bypass valves to simplify future servicing. These are not included.

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Maintenance

Routine maintenance is simple.

• Replace filter cartridges approximately every 6–12 months, depending on water quality and usage.
• Clean the quartz sleeve whenever the UV lamp is inspected.
• The flow-activated UV system only operates while water is flowing, which can significantly extend lamp life compared with conventional continuously operating UV systems.
• Replace the UV lamp according to its condition, performance and Waimana's servicing guidance rather than automatically replacing it every 12 months.

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What's Included

• Heavy-duty wall bracket
• Three filter cartridges
• 33W UV lamp
• Flow-activated ballast
• Flow switch
• Filter wrench
• Thread tape

Pure III Shield also includes:

• Protective cover
• Two pressure gauges

Connecting fittings and bypass valves are not included.

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Frequently Asked Questions

What's the difference between the Pure III and Pure III Shield?

Both systems provide identical filtration performance, UV treatment and flow rate. The Shield adds a protective enclosure and pressure gauges, making it suitable for outdoor installation.

Is the Pure III suitable for rainwater and bore water?

Yes. The Pure III is designed for mains water, rainwater tanks and bore-water supplies within the specified operating limits.

What does the flow-activated UV system do?

The UV lamp only switches on when water is flowing, helping reduce electricity use, extend lamp life and prevent water warming inside the chamber.

Does UV change the taste of water?

No. UV treatment disinfects water without changing its taste or adding chemicals. The carbon filter is what helps improve taste and odour.

How often should the filter cartridges be replaced?

Typically every 6–12 months, depending on water quality and household water usage.

Can the standard Pure III be installed outdoors?

No. The standard model should be installed indoors or under cover. Choose the Pure III Shield for outdoor installations.