Duration: Up to 500,000 gallons (1,890,000 litres)*** OR 3 years (36 months), whichever comes first.
This Big Green TAC greenguard patented filter (aka internal filter cartridge) is the magic to scale prevention in the Big Green Three-Stage Treatment procedure:
- Sediment Filtration: Removes particles down to 20 microns, with a dirt-holding capacity of up to 1 kg (2.2 lbs).
- Carbon Filtration: Reduces chlorine, improves taste and odor, and removes toxic chemicals.
- TAC Filtration: Prevents scale buildup and dissolves existing scale.
What is Big Green?
Big Green™ provides an innovative, eco-friendly water conditioner and filtration system that addresses limescale issues while enhancing water quality. Using proven Template Assisted Crystallization (TAC) technology, Big Green transforms calcium and magnesium—the minerals that cause limescale—into harmless microscopic crystals. These crystals cannot adhere to surfaces, effectively preventing new scale formation and removing existing deposits. Unlike traditional water softeners, it retains these essential minerals in the water, promoting better taste and health -- Big Green is a limestone prevention system!
Compact, Efficient, and Eco-Friendly
Designed for modern households and businesses, Big Green is compact enough to fit in a meter cupboard and requires no salt, electricity, or chemicals. It’s easy to install, requires no drainage, and is suitable for all pipe materials, including iron, copper, and PVC. The system ensures your appliances—boilers, central heating systems, heat pumps, coffee machines, washing machines, and dishwashers—stay free of limescale, improving their efficiency and lifespan. Taps and showers remain spotless and easy to clean, saving you time and effort.
How Big Green Works
The system filters water through a high-capacity active carbon filter, reducing chlorine, toxic chemicals, and unpleasant odors while improving taste and clarity. It then uses the patented TAC cartridge to neutralize scale. This trusted method, tested to stringent standards, offers a superior alternative to traditional water softeners.
Advantages at a Glance
- Protects pipes, appliances, and equipment from scale buildup and corrosion.
- Reduces chlorine and other contaminants, ensuring clean, great-tasting water.
- Saves energy by improving appliance efficiency and reducing maintenance needs.
- Requires no chemicals, salt, or electricity, making it environmentally friendly.
- Compact and space-saving, outperforming larger conventional systems.
Technical Specifications
- Rated Flow: 11.34 lpm (3 gpm) – Min. 3.78 lpm (1 gpm), Max. 37.8 lpm (10 gpm).
- Operating Temperature: 5–40 °C (40–104 °F).
- Max Pressure: 620 kpa* (90 psi) – pressure-limiting valve required above 500 kpa (70 psi).
- Size: 254 mm (10") x 457 mm (18").
- Weight: 7 kg.
Water Quality Conditions
- pH Range: 6.5–8.5.
- Hardness: Max. 75 grains per gallon (1300 ppm CaCO3).
- Chlorine: < 3 ppm.
- Iron: < 0.3 mg/L.
- Manganese: < 0.05 mg/L.
- Oil, Phosphates, H2S: None.
Durability and Certifications
- Tested to German DVGW-W512 standards.
- Carbon block tested to NSF/ANSI Standard 42 for material safety.
- Manufactured with high-quality, FDA-grade materials.
Conditions for Use
- Suitable for indoor installations. Outdoor installations require protection.
- Not for use with microbiologically unsafe water without pre-disinfection.
With its innovative design and proven TAC technology, Big Green ensures your water is clean, fresh, and free from limescale—delivering unmatched protection and convenience for your home or business.
* Materials (sumps & caps) Polypropylene, ABS (high quality & FDA grade), Materials (o-ring) EPDM (NSF 61 listed), Cycle tests (@125 psi) 150,000 cycles
*** Depending on local water chemistry