Langwater TheWell 2 Water Purifier (White, Countertop)

How effective is the filtration system at removing contaminants?

The system uses NSF58-certified reverse osmosis membrane technology that removes up to 99.9% of pollutants. This includes microplastics, heavy metals, PFAS (forever chemicals), hormones, pharmaceuticals, pesticides and chlorine. The multi-stage process combines sediment filtration, carbon filtration, reverse osmosis and UV sterilisation. Independent testing confirms the system blocks particles as small as 0.0001 microns, making it one of the most effective home filtration systems available.

Does the tankless design really prevent bacterial contamination?

Yes, the tankless technology eliminates the storage tanks where bacteria typically grow in traditional systems. Water is purified on-demand and flows directly from the filters to your glass. The system includes UV sterilisation as a final stage and uses antimicrobial materials throughout. Independent bacterial testing confirms zero bacteria contamination. The system also runs automatic rinsse programmes to maintain hygiene without user intervention.

Are the mineral packs necessary and what do they contain?

The mineral packs are essential for producing balanced, healthy water. Reverse osmosis removes all minerals, creating demineralised water that tastes flat and lacks essential electrolytes. The Swiss-made LANGPAK system adds back calcium (16.3mg/L), magnesium (4mg/L) and potassium (142mg/L) in precise ratios. These are natural mineral salts with no additives, sodium or artificial ingredients. One pack set mineralises 250 litres and the intensity is fully adjustable.

How much water does the system waste compared to traditional RO systems?

The recirculation technology achieves 70% water efficiency with a 2.3:1 ratio, meaning for every 2.3 litres processed, you get 1 litre of purified water. Traditional RO systems typically waste 3-4 litres for every litre produced. This system cuts waste by over 50% whilst extending membrane life. The recirculated water helps flush contaminants and prevents membrane clogging, actually improving filtration performance over time.

What maintenance is required and how often?

The system requires minimal maintenance thanks to self-cleaning features and long-lasting filters. The RO membrane lasts 2 years or 3000 litres, whilst the sediment/carbon filter lasts 1 year or 1500 litres. The app monitors filter life and sends replacement alerts. Descaling is only needed when alerted, using the provided descaling cartridge. The system runs automatic rinse cycles and includes anti-scale technology to prevent mineral buildup.

How does the hot water function work and is it energy efficient?

The integrated heating system provides precise temperature control through the touchscreen or app. Multiple temperature settings are available for different beverages and uses. The system uses only 0.004 kWh per litre, making it highly energy efficient. Hot water is produced on-demand without maintaining a hot water tank, saving energy and ensuring fresh hot water every time. Perfect for tea, coffee or instant meals.

Can I adjust the mineral content and alkaline level?

Yes, the mineral intensity is fully adjustable through the smartphone app or touchscreen. You can increase or decrease the mineral content to suit your taste preferences. The standard setting produces water at pH 7.8 with balanced electrolytes. The liquid mineral delivery system allows precise dosing, unlike solid mineral cartridges that provide fixed ratios. This customisation ensures optimal taste and health benefits for your family.

How does the system compare to bottled water in terms of cost and quality?

The system produces premium mineralised water for approximately 12 pence per litre, dramatically cheaper than bottled water. Quality exceeds most bottled waters as the filtration removes more contaminants than standard bottling processes. The Swiss mineral formulation matches premium Alpine spring water profiles. One mineral pack set costs less than a case of bottled water but produces 250 litres. The system pays for itself within months whilst eliminating plastic waste.