Langwater TheWell 2 Water Filter (White, Countertop)

How long do the filters last and what do replacements cost?

The reverse osmosis membrane lasts 2 years or 3000 litres, whilst the sediment carbon filter lasts 1 year or 1500 litres depending on your water's TDS level. Higher TDS water will require more frequent filter changes. The system alerts you when replacements are needed through the app and touchscreen display. Filter costs vary but the system tracks usage to maximise filter life and provide accurate replacement timing.

Do I need to buy mineral packs separately and how much do they cost?

Yes, the TheWell 2 requires LANGWATER Swiss-made mineral packs to function properly. Each mineral pack set yields 250 litres of mineralised water at approximately 12 pence per litre. The packs contain natural calcium, magnesium and potassium in liquid form with no additives or sodium. Without mineral packs, you'll only get demineralised water which lacks essential minerals and taste.

How much water does the system waste compared to traditional reverse osmosis?

The TheWell 2 achieves 70% water efficiency with a 2.3:1 ratio through its recirculation technology. This means for every 2.3 litres of input water, you get 1 litre of filtered water. Traditional reverse osmosis systems typically waste 3-4 litres for every litre produced. The recirculation system significantly reduces waste whilst maintaining filtration quality, making it more environmentally friendly and cost-effective.

Can I use this system with very hard water?

The system handles water with TDS up to 600 PPM, but very hard water will reduce filter life significantly. One customer in North Yorkshire with limestone aquifer water reported needing filter replacement after just 1 month instead of the advertised 1 year. The system will alert you when TDS levels are too high and filters need changing. Consider your local water hardness when calculating ongoing costs.

How much space does it take up on my countertop?

The unit measures 35cm length x 21cm width x 47cm height, making it relatively compact for a full reverse osmosis system. At 21cm wide, it fits most countertops whilst the adjustable platform accommodates different container sizes. The vertical design maximises functionality whilst minimising footprint. Consider the 47cm height when placing under cabinets or shelves.

Is the daily hot water cleaning cycle really necessary?

The automatic hot water cleaning cycle maintains system hygiene and prevents bacterial growth in the internal components. Some users find the 20-minute daily cycle time-consuming, but it's essential for water safety and system longevity. The cleaning cycle uses hot water up to 90°C to sanitise internal pathways. You can schedule this during convenient times through the app.

What pollutants does the system actually remove?

The NSF58-certified reverse osmosis membrane removes metals, microplastics, PFAS (forever chemicals), hormones, pharmaceuticals, pesticides, chemicals and microorganisms including bacteria. The UV light provides additional sterilisation whilst the sediment carbon filter handles larger particles and chlorine. The system has been tested for both chemical and bacterial safety, achieving up to 99.9% pollutant removal rates.

Can I get flavoured water and how does it work?

Optional LANGWATER+ fruit extract packs create flavoured water in lemon, orange and peach varieties. Each pack yields 50 litres of zero-calorie, sugar-free, sweetener-free flavoured water using natural fruit extracts. The liquid technology integrates with the mineral dosing system for consistent flavour intensity. Flavour packs are sold separately and work alongside the mineral packs for customised hydration.