ATENA Water Softener — Compact Design with Colour Touchscreen
Discover the ATENA water softener distributed by DIMM: compact square design, colour LCD touchscreen, upflow regeneration, available in 10 L and 25 L. Salt and water savings, overflow protection.

ATENA water softener overview
The ATENA is a water softener with a square, compact design, engineered to integrate elegantly into your home. Available in two capacities — 10 litres and 25 litres — it combines technical performance with modern aesthetics. Its square tank optimises space and its refined finish allows it to blend into your home décor, where traditional softeners impose a bulky cylindrical footprint.
Distributed by DIMM in Belgium and France, the ATENA is a product by Canature, a globally recognised brand for residential and industrial water treatment solutions.

Colour LCD touchscreen
The ATENA stands out with its colour LCD touchscreen, a rare feature in this price range. The interface displays in real time:
- Time and date — automatic synchronisation
- Regeneration mode — volumetric or time-based
- Remaining capacity — volume of softened water still available before next regeneration
- Working flow rate — instant consumption
The screen offers a multi-language interface for intuitive operation, regardless of the installation market.

Upflow regeneration
The ATENA uses upflow regeneration (counter-current), the most efficient technology for regenerating water softener resins. Unlike conventional downflow systems, upflow regeneration:
- Saves salt — 30–50% lower consumption at equal capacity
- Saves water — less rinse water required
- Improves regeneration quality — the most used resin layers are regenerated first
- Extends resin lifespan — more uniform, gentler regeneration
Intelligent automatic functions
The ATENA operates fully automatically after initial parameter setup:
- Automatic backwash — triggered based on elapsed time and consumed flow, with no manual intervention
- Anti-bacterial refresh cycle — when water has not been used for 7 days, the softener automatically runs a cycle to prevent bacterial growth in the resins
- Overflow protection — a safety system drains excess water in case of overfilling, protecting against salt tank overflow
Zero intervention — Once hardness parameters are configured, the ATENA manages all regeneration and protection cycles on its own. You only need to check the salt level periodically.
Robust and practical design
The ATENA tank is square and compact to optimise installation space. Its design is characterised by:
- Robustness — reinforced structure that prevents deformation during salt and water filling
- Removable lid — easy access for salt refilling without tools
- Built-in handles — easy to move during installation or maintenance
- Modern design — clean, sleek appearance that suits any interior
Technical specifications
| Feature | ATENA 10 L | ATENA 25 L |
|---|---|---|
| Resin volume | 10 litres | 25 litres |
| Peak flow rate | 7.2 m³/h | 9 m³/h |
| Dimensions (W × D × H) | 435 × 335 × 550 mm | 435 × 335 × 1060 mm |
| Regeneration | Upflow | Upflow |
| Control | Colour LCD touchscreen | Colour LCD touchscreen |
| Protection | Overflow | Overflow |
| Anti-bacterial cycle | Automatic (7 days) | Automatic (7 days) |
| Recommended household | 1–2 people | 3–5 people |
Which ATENA model to choose?
| Situation | Recommended model | Why |
|---|---|---|
| Apartment, couple or single person | ATENA 10 L | Ultra-compact (55 cm tall), sufficient for 1–2 people, fits under a sink |
| Family house, moderately hard water | ATENA 25 L | High capacity, high flow rate (9 m³/h), spaced-out regenerations |
| Holiday home | ATENA 10 L | Automatic anti-bacterial cycle (7 days) protects resins during extended absence |
Installation and commissioning
Installing the ATENA water softener is quick and straightforward for any qualified installer:
- Position the unit near the main water inlet, on a flat and stable surface
- Connect the water inlet and outlet via the supplied bypass
- Connect the drain hose to a drainage or siphon
- Plug in the power supply
- Fill the salt tank (tablet salt recommended)
- Configure inlet hardness and resin capacity on the touchscreen
- Run an initial regeneration cycle
Important note — A non-return valve upstream of the softener is mandatory under Belgian and French regulations to prevent softened water from flowing back into the public network.
Routine maintenance
The ATENA requires minimal maintenance thanks to its automatic functions:
- Salt — Check the level monthly, top up with tablet salt (avoid rock salt)
- Resin cleaner — Annual treatment with a resin cleaner extends resin lifespan
- Residual hardness — Test with a TH kit every 6 months
- Professional service — DIMM recommends an annual check by an authorised technician
Why choose DIMM for your ATENA water softener?
DIMM distributes the ATENA water softener in Belgium and France. By ordering from DIMM, you benefit from:
- Permanent stock — both models available within 24–48 hours from our 15,000 m² warehouse in Poperinge
- Technical advice — free sizing based on your water analysis
- Spare parts — resins, seals and accessories always in stock
- Responsive after-sales — phone support and on-site service in Belgium and Northern France
- Installer training — commissioning and maintenance training sessions
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