Langwater TheWell 2 Countertop RO System (White, EU Model)

Do I need to buy mineral packs separately and how long do they last?

Yes, mineral packs are essential and sold separately. The system will not operate without both mineral packs A and B inserted, as it detects empty packs and stops functioning. One set of Swiss-made LANGPAK mineral concentrates mineralises up to 250 litres of water, providing calcium, magnesium and potassium. At typical household usage, this represents excellent value at approximately 12p per litre of mineralised water.

How does the water efficiency compare to traditional RO systems?

This system achieves 70% water efficiency with a 2.3:1 ratio, meaning you get 1 litre of pure water for every 2.3 litres of input water. Traditional RO systems typically waste 3-4 litres for every litre produced. The intelligent recirculation technology recovers much of the concentrate water that would normally be wasted, making this significantly more environmentally friendly and cost-effective.

What contaminants does the system remove and how effective is it?

The 3+1 stage filtration removes up to 99.9% of pollutants including heavy metals, microplastics, PFAS chemicals, hormones, pharmaceuticals, chlorine, sediment and bacteria. The NSF58-certified reverse osmosis membrane blocks particles down to 0.0001 microns, whilst the UV sterilisation provides an additional safety barrier against any remaining microorganisms. Independent laboratory testing confirms consistent performance.

How long do the filters last and what are the replacement costs?

The NSF58 reverse osmosis membrane lasts 2 years or 3000 litres, whilst the combined sediment/carbon filter lasts 1 year or 1500 litres. Filter lifespan varies depending on your water's TDS levels - higher TDS water will reduce filter life. The app monitors filter status and alerts you when replacement is needed, ensuring optimal performance throughout the filter's life.

Can I control water temperature and how hot does it get?

Yes, the system provides precise temperature control up to 90°C through the app or touchscreen interface. This makes it perfect for instant tea, coffee or cooking applications. The heating element is built into the system, so you get hot, purified, mineralised water on demand without needing a separate kettle or hot water dispenser.

Does the system require professional installation or plumbing work?

No installation is required - it's completely plug and play. Simply place it on your countertop, connect the power adapter, fill the input reservoir with tap water, insert the mineral packs and connect to the app for initial setup. No plumbing modifications, drilling or professional installation needed, making it perfect for renters or anyone wanting hassle-free operation.

How does the app connectivity work and what can I control?

The dedicated smartphone app connects via Wi-Fi and provides complete system control. You can adjust mineral levels, set water temperature, select delivery volumes, monitor TDS levels, check filter life, customise flavour intensity (with optional flavour packs) and receive maintenance alerts. The touchscreen on the unit provides the same functionality for quick access without your phone.

What maintenance is required and how often?

Maintenance is minimal thanks to the self-cleaning feature. The system automatically cleans itself and you only need to perform periodic descaling when the app alerts you, using the provided descaling cartridge. Regular maintenance involves replacing filters according to the app's monitoring system and refilling mineral packs when empty. The antimicrobial materials prevent bacterial growth, ensuring consistent water quality.