Waiora Clarity Plus II + Waimana UV 48W Bundle - High Flow Filtration & UV Treatment NZ

Busy households and larger rural properties draw more water, more often. A system built around 10-inch cartridges and a 33W lamp starts to feel the pressure under that kind of demand. The Waiora Clarity Plus II and Waimana UV 48W bundle is sized for exactly this situation, pairing 20-inch jumbo filtration housings with a 48W UV chamber capable of treating water at up to 45 litres per minute.

The jump to 20-inch housings is not just about flow rate. More filter media means the cartridges hold more sediment before they need attention, which matters in properties where water quality puts a heavier load on the system, less frequent changes, better sustained performance, and a setup that keeps pace with real household demand.

The Waimana UV 48W unit handles the biological side without chemicals. Its flow-activated lamp turns on when water moves through and off when demand stops, so power is only used when it needs to be, and the chamber stays cool between draws.

Both units ship separately and install in line, with the Clarity Plus II upstream and the UV unit as the final stage before water reaches the home.

Why This Bundle Works

• 20 inch jumbo housings deliver greater filter capacity and longer cartridge life than 10 inch alternatives
• 45 L/min flow rate suits medium to large homes and high-demand rural properties without pressure drop
• 48W UV chamber provides thorough treatment against bacteria, viruses, Giardia, and Cryptosporidium
• Flow-activated UV runs only when water is moving, reducing power draw and preventing chamber heat build-up
• Stage 1 polypleated cartridge is cleanable and reusable between full replacements
• Complete sediment and UV treatment covered in one bundle rather than sourced separately
• Both units carry a 3-year warranty
• Standard 25mm BSP connections on both units for consistent installation

How the System Works Together

Stage 1: Coarse Sediment (Clarity Plus II)

The 20 micron polypleated jumbo filter removes larger particles, silt, dirt, and organic debris from your supply. The 20-inch format holds considerably more sediment than a standard 10-inch cartridge before needing a change. This cartridge is also cleanable, so that you can rinse and reuse it between full replacements.

Stage 2: Fine Sediment (Clarity Plus II)

The 1 micron polyspun jumbo filter strips out the finer particles that pass Stage 1, and physically blocks Giardia cysts at the same time. Water leaving this stage is visibly clear and properly prepared for UV treatment.

Stage 3: UV Treatment (Waimana UV 48W)

Water passes through the stainless steel UV chamber where the 48W lamp delivers a dose of 30 mJ/cm2 at up to 45 L/min, treating it against bacteria, viruses, and micro-organisms without any chemicals or additives. The integrated flow switch activates the lamp when water is in motion and cuts it off when demand stops.

Sediment filtration before UV is what makes the UV reliable. Particles in the chamber scatter light and shield micro-organisms from treatment. The Clarity Plus II takes care of that problem before water ever reaches the UV stage.

Why the Clarity Plus II Over the Clarity II

The standard Clarity II uses 10-inch housings, which suit smaller homes with moderate water demand. The Clarity Plus II steps up to 20-inch jumbo housings, offering more filter media, higher sediment holding capacity, and longer intervals between cartridge changes. Paired with the 48W UV unit at 45 L/min, this bundle is the right fit for medium to large homes or any property where flow rate and filter longevity actually matter.

Key Specifications

Clarity Plus II

• Housing size: 20-inch jumbo
• Filtration stages: 2
• Stage 1: 20 micron polypleated sediment filter (20 inch jumbo)
• Stage 2: 1 micron polyspun sediment filter (20 inch jumbo)
• Connection: 25mm BSP
• Max pressure: 125 PSI (8.5 bar)
• Recommended pressure: 85 PSI (6 bar)
• Cartridge life: 6 to 12 months
• Bracket: Powder-coated steel
• Warranty: 3 years

Waimana UV 48W

• UV lamp power: 48W
• UV dose: 30 mJ/cm2
• Max flow rate: 45 L/min
• Connection: 25mm BSP
• Max pressure: 116 PSI (8 bar)
• Power supply: 240V
• UV lamp life: Varies with usage
• Housing: Stainless steel
• Warranty: 3 years

What's in the Box

Clarity Plus II (ships separately)

• Waiora Clarity Plus II filter system (pre-assembled)
• 20 micron polypleated cartridge (20 inch jumbo)
• 1 micron polyspun cartridge (20 inch jumbo)
• Powder-coated steel bracket
• Housing spanner

Waimana UV 48W (ships separately)

• Waimana UV chamber (stainless steel)
• 48W UV lamp
• Quartz sleeve
• Ballast with power lead and 3-pin plug
• Flow switch
• Spring and O-rings

Good Fit For

Medium to large NZ homes on tank or rainwater supply, lifestyle blocks and rural properties with higher simultaneous water demand, properties where cartridge longevity and flow rate are a priority. Any supply where sediment load is higher and more frequent filter changes are a concern, households needing chemical-free biological treatment at higher volumes

Not Ideal For

Smaller homes with modest water use. The Waiora Clarity II + Waimana UV 33W bundle is better sized for smaller households and lower flow demand. Bore water without prior testing. Quality varies considerably between sites, and additional treatment stages may be needed. Get in touch, and we can help confirm the right configuration for your supply.

FAQs

1. Why do I need both filtration and UV?

They handle different problems. Filtration removes sediment and particles. UV destroys bacteria, viruses, and microorganisms. Running one without the other leaves gaps in your water treatment.

2. Why choose this bundle over the Clarity II and UV 33W?

The Clarity Plus II uses 20-inch jumbo housings for greater capacity and longer cartridge life. The 48W UV unit handles 45 L/min versus 30 L/min. Better suited to larger homes or properties with higher daily water demand.

3. Why does the installation order matter?

UV light cannot penetrate turbid water. Sediment in the chamber blocks treatment and shields micro-organisms from the lamp. The Clarity Plus II removes sediment first so the UV stage can do its job properly.

4. Does the 1 micron filter remove Giardia?

Yes. Giardia cysts are typically 8 to 12 microns, so the 1 micron polyspun filter physically blocks them. The UV stage adds a further layer of protection.

5. Is this suitable for bore water?

It can be, but bore water varies considerably between sites. We recommend testing before ordering to confirm this setup suits your supply. Get in touch, and we can help.

6. Do both units need to be installed at the same time?

No. They can go in separately. The Clarity Plus II always goes upstream, with the UV unit as the last stage before water enters the home.

7. Do I need a plumber?

Yes, a licensed plumber is recommended for both units. Standard 25mm BSP fittings throughout, and the UV unit plugs into a standard 240V outlet.

8. What does the warranty cover?

Both units carry a 3-year manufacturer's warranty. Cartridges and the UV lamp are consumables and are not included under warranty.