Softeners for Oman's hard inland water.
Coastal mains in Oman is desalinated and soft. Inland it is a different story: a 2024 study of Al Dhahirah groundwater found an average total hardness of about 659 mg/l. Water like that crusts heaters, taps and shower glass quickly. Regal takes the calcium and magnesium out first, from an under-sink unit for a villa to twin vessels for a hotel or farm.
A villa kitchen, a hotel or a whole farm.
Begin with the property. We fix the model once we know the source, how hard it is and your peak flow.
Homes & light commercial
Small cabinets on the US-made Clack DV valve that fit beneath a kitchen sink. The 100 and 150 suit villas and smaller homes on a well; the 200 covers large villas and small cafe kitchens.
- 1.0 to 1.8 m3/h softened
- 1.8 to 5 m3 between regenerations
- Salt and water used only when the meter says so
- Draws 30 W
Commercial & light industrial
A floor-standing unit with its own pressure vessel and brine tank, for hotel kitchens, laundries and light production on hard groundwater.
- 6.12 m3/h softened flow
- 10 × 54" vessel
- 125 L brine tank with overflow guard
- Metered regeneration, not a timer
Industrial
Large and twin-tank systems for farms, factories and plants on a well that need soft water day and night.
- 3.5 to 18.2 m3/h softened flow
- 15 m3 between regenerations on the 750
- Twin vessels alternate, so supply never stops
- Up to 6 units on one controller
Every Regal, side by side.
Figures are from the manufacturer datasheets. Open any model for its full specification.
| Model | Type | Soft-water flow | Capacity | Size | Best for |
|---|---|---|---|---|---|
| Regal 100 | Under-sink cabinet | 1.0 to 1.2 m3/h | 1.8 m3 | 270 × 430 × 469 mm | Small to medium homes |
| Regal 150 | Under-sink cabinet | 1.3 to 1.5 m3/h | 3 m3 | 270 × 430 × 539 mm | Small to medium homes |
| Regal 200 | Under-sink cabinet | 1.6 to 1.8 m3/h | 5 m3 | 270 × 430 × 741 mm | Large homes, light commercial |
| Regal 500 | Floor-standing, separate brine tank | 6.12 m3/h | Metered by volume | 10 × 54" tank, 125 L brine | Large homes, light commercial |
| Regal 750 | Floor-standing bi-block, ready-loaded | 3.5 m3/h (4.3 max) | 15 m3 | 1585 × 900 × 450 mm | Hospitality, healthcare, light industrial |
| Regal Twin 3672 | Twin alternating | 18.2 m3/h | Continuous | 2 × 36 × 72" vessels | Industrial, 24/7 supply |
How the resin pulls hardness out.
The softener holds a bed of resin beads charged with sodium. Hard water flows through, and the beads swap that sodium for calcium and magnesium, the minerals that form scale. These are the parts of a metered softener at work.
- 1Bypass valve
Isolates the softener for servicing while keeping water flowing to the building.
- 2Control valve
Routes water through each stage and runs regeneration automatically.
- 3Water meter
Counts every litre of soft water, so regeneration happens only when the resin is nearly spent.
- 4Mineral tank
The pressure vessel. Headroom above the resin lets the bed lift and clean itself on backwash.
- 5Ion-exchange resin
Beads charged with sodium. Calcium and magnesium stick to them and sodium is released.
- 6Riser tube & distributor
Soft water is collected at the base of the tank and rises up the centre tube to the outlet.
- 7Salt & brine
Salt dissolves in the water at the base of the tank to make the brine used to recharge the resin.
- 8Brine well & safety float
Draws brine out and meters the refill. The float stops the tank from overfilling.
- 9Drain with air gap
Carries rinse water away. The air gap stops drain water from ever siphoning back.
- 10Drinking tap
Teed off before the softener, so one kitchen tap stays on unsoftened water.
Recharging, only when it's needed.
When the meter shows the resin is nearly used up, the valve starts a regeneration, straight away or at a set time such as 2 am. On a twin set the second vessel takes over, so soft water never stops.
- In service
Service
Hard water flows down through the resin and leaves as soft water. The meter counts each litre used.
- Stage 1
Backwash
Water runs up through the tank, lifting and loosening the bed and flushing trapped sediment to drain.
- Stage 2
Brine draw & slow rinse
Brine is drawn from the salt tank through the resin. It strips off the calcium and magnesium and recharges the beads with sodium.
- Stage 3
Fast rinse
A fast flow of water resettles the bed and rinses the last of the brine and hardness to drain.
- Stage 4
Brine refill
A measured volume of water refills the salt tank, making fresh brine for the next regeneration.
Stages differ by valve. Some add a second backwash, and up-flow models such as the Regal 100 and 200 send brine upward through the resin to use less salt.
What softening saves in a home or business.
Protects equipment
- Water heaters stay scale-free
- Washing machines and dishwashers keep clean elements
- Espresso machines stay clear
- Fewer clogged valves and shower heads
Visible every day
- Soap and shampoo lather easily
- Glasses dry without marks
- No white crust on taps and screens
- Much less descaling
Cheap to run
- Metering saves salt and water
- Proven Clack and CE valves
- Low-power controls
- Serviced by our Oman partner
Any size, the same build quality.
Every Regal uses metered regeneration and proven valves, so a villa in Ibri and a hotel in Nizwa get the same engineering, scaled to the job.
- Sized to your source and your flow
- Pairs with Regent filtration for silty wells
- A separate unsoftened drinking tap, as standard practice
- Maintenance plans from a fixed annual fee
Water softeners in Oman, simply answered.
Q1Do I need a softener in Muscat?
Q2How does a softener work?
Q3Which Regal is right for us?
Q4Can we drink softened water?
Q5Softener or filter?
Q6Who installs and services it?
Regal in Oman
Oman's water hardness depends on where you are. Coastal mains water is mostly desalinated and soft. Inland groundwater is another story: a 2024 study in Al Dhahirah found average hardness of about 659 mg/l, enough to leave scale in heaters and pipes.
Regal softeners take that hardness out. The range runs from a small unit under a kitchen sink to twin vessels for a hotel, and every one is quoted in rials.
Common questions
Does a Muscat flat on desalinated water need a softener?
Usually not. Desalinated mains water carries little hardness. Softeners matter most for homes and sites on inland groundwater or a private well.
What does a softener actually do?
It swaps the calcium and magnesium that cause scale for sodium. It does not disinfect, so a well supply still needs UV as the last step.
Can soft water keep flowing during regeneration?
On the Regal Twin 3672, yes. Two vessels take turns, and up to six units can share one controller.
Specified, installed and looked after anywhere in Oman
Coastal mains water is mostly desalinated seawater. It is soft, but it picks things up in pipes and tanks. Inland wells can be very hard: one 2024 study of Al Dhahirah groundwater found an average hardness of 659 mg/l.
Say which governorate you are in, whether the water comes from the Nama network, a tank or a well, and what you need it for. We design the system, price it in rials and arrange the fit.
Source: Nama Water Services; Al Dhahirah groundwater study, International Journal of Environmental Analytical Chemistry (2024).
Tell us about your water.
Say whether you are on a well, a tank or Nama mains, and what the water supplies. We'll come back with the right Regal and a service plan, priced in rials.
