UTAH Water Softener — DIMM Counter-Current Residential Range

UTAH range overview

The UTAH by DIMM range is a family of residential water softeners designed for the Belgian and French markets. Three models — 10 L, 22 L and 25 L — cover the needs of 1 to 6 people. Their common feature: volumetric counter-current regeneration (upflow) controlled by the Floteck BNT-850 electronic valve, a DIMM exclusive.

Unlike conventional co-current (downflow) softeners, counter-current technology regenerates the resin from bottom to top, allowing 30–50% lower salt consumption at equal capacity, consistently high treated water quality (near-zero residual hardness), and extended resin lifespan.

The Floteck BNT-850 valve in detail

The technological heart of the UTAH range is the Floteck BNT-850 electronic valve. This valve automatically manages the entire regeneration cycle:

• Volumetric regeneration — triggered only when resin capacity is depleted, measured by a built-in meter
• Calendar forcing — automatic regeneration if no cycle has occurred during the programmed period (0 to 99 days), to prevent bacterial stagnation
• Holiday mode — reduces regeneration frequency during extended absence
• Counter-current (upflow) — bottom-to-top regeneration for maximum efficiency
• LCD display — remaining volume, time, regeneration status

The valve is powered by 220–240 V AC (transformer supplied) and operates at pressures of 2 to 8.6 bar, for water temperatures of 4 to 43 °C.

Comparative technical specifications

Feature	UTAH 10 L	UTAH 22 L	UTAH 25 L
Resin volume	10 L	22 L	25 L
Salt tank capacity	25 kg	41 kg	61 kg
Recommended household	1–2 people	3–4 people	4–6 people
Max. inlet hardness	—	50 °f	50 °f
Instant flow rate	—	2.0 m³/h	2.5 m³/h
Dimensions (H × W × D)	—	848 × 308 × 451 mm	1080 × 308 × 451 mm
Connections	3/4" angled	3/4" angled	3/4" angled
Power supply	220–240 V AC	220–240 V AC	220–240 V AC
Working pressure	2–8.6 bar	2–8.6 bar	2–8.6 bar
Water temperature	4–43 °C	4–43 °C	4–43 °C
Valve	Floteck BNT-850	Floteck BNT-850	Floteck BNT-850
Regeneration	Counter-current volumetric	Counter-current volumetric	Counter-current volumetric
Reference	CA-UTAH-10	CA-UTAH-22	CA-UTAH-25

Exchange capacity by salt dosage

A water softener's exchange capacity varies depending on the amount of salt used per regeneration. The table below shows the performance of the 22 L and 25 L models at three dosage levels:

Salt dosage	UTAH 22 L (°f·m³)	UTAH 25 L (°f·m³)
48 g/L (economy)	61	70
96 g/L (standard)	113	165
192 g/L (high capacity)	132	200

Design and ergonomics

The UTAH range features a compact monobloc cabinet in white ABS with a turquoise decorative band, integrating the resin bottle and salt tank in a single unit. The flush-mounted lid provides a sleek appearance that fits into a utility cupboard, pantry or garage.

Practical points:

• Built-in bypass with 3/4" angled connections — simplified installation
• Top-access salt filling (removable lid)
• No complex programming: set inlet hardness and resin volume, the valve calculates the rest

Certifications and compliance

All UTAH models are certified to the following standards:

• NSF/ANSI 44 — Water softener performance (leading North American standard)
• CE — European conformity
• ACS — Sanitary Conformity Attestation (France) — drinking water contact
• KTW — Plastic materials in contact with drinking water (Germany)
• W270 — Microbiological growth on materials in contact with drinking water (Germany)

Which UTAH model to choose?

Situation	Recommended model	Why
Apartment, couple or single person	UTAH 10 L	Compact, sufficient for 1–2 people, minimal footprint
House 3–4 people, moderate hardness (15–30 °f)	UTAH 22 L	Good capacity/size ratio, spaced-out regenerations
House 4–6 people, very hard water (>30 °f)	UTAH 25 L	High capacity, 61 kg salt tank, 2.5 m³/h flow
Holiday home / low consumption	UTAH 10 L	Built-in holiday mode, calendar forcing prevents stagnation

Installation and commissioning

Installing a UTAH water softener is within reach of a qualified installer in under 2 hours:

1. Position the unit near the main water inlet, on a flat surface
2. Connect the water inlet and outlet via the supplied 3/4" bypass
3. Connect the drain hose (drainage or siphon)
4. Plug in the power supply (220–240 V transformer supplied)
5. Fill the salt tank (tablet salt recommended)
6. Program the inlet hardness on the BNT-850 valve
7. Run an initial regeneration cycle

Routine maintenance

The UTAH water softener requires minimal maintenance:

• Salt — Check the level monthly, top up with tablet salt (avoid rock salt)
• Resin cleaner — Annual treatment with a resin cleaner (e.g. Resinol) 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 UTAH water softener?

DIMM is the exclusive distributor of the UTAH range in Belgium and France. By ordering from DIMM, you benefit from:

• Permanent stock — all 3 models available within 24–48 hours
• Technical advice — free sizing based on your water analysis
• Spare parts — valves, resins, seals and bypasses always in stock
• Responsive after-sales — phone support and on-site service in Belgium and Northern France
• Installer training — commissioning and maintenance training sessions