Softeners for Saudi groundwater blends.
Part of Saudi Arabia's supply is groundwater, and that is where the scale comes from. Regal softeners take out the calcium and magnesium before they coat heaters, kettles and pipes, from an under-sink unit for a flat to twin vessels for a hotel. Our team in Saudi Arabia sizes, installs and services each one in Riyadh, Jeddah and other cities.

Homes, hotels and factories.
Choose the group that fits your building. We confirm the model once we know the hardness of your supply and your peak flow.
Homes & light commercial
All-in-one cabinets built on the US-made Clack DV valve, slim enough for the space under a kitchen sink. The 100 and 150 suit flats and smaller villas; the 200 suits large villas and light commercial use.
- Softened water at 1.0 to 1.8 m3/h
- 1.8 to 5 m3 per regeneration
- Salt and water used only when needed
- 30 W power use
Commercial & light industrial
A floor-standing softener with separate pressure and brine tanks, for busy restaurants, laundries and light industry on hard supplies.
- 6.12 m3/h of softened water
- 10 × 54" pressure tank
- 125 L brine tank with overflow guard
- Meter-driven regeneration
Industrial
Floor-standing and twin-tank softeners for factories, compounds and plants that run on groundwater around the clock.
- From 3.5 to 18.2 m3/h
- 15 m3 per regeneration on the 750
- Twin vessels alternate for nonstop soft water
- Up to six units on one controller
Six softeners, from a flat to a factory.
Every Regal, side by side.
Each figure is taken from the manufacturer's datasheet. Open a model for the full specification and the PDF.
| 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 | 1.5 m3/h | 3 m3 | 270 × 430 × 540 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 | Heavy commercial, light industrial |
| Regal 750 | Floor-standing, separate brine tank | 3.5 m3/h (4.3 peak) | 15 m3 | 1585 × 900 × 450 mm | Industrial |
| Regal Twin 3672 | Twin alternating | 18.2 m3/h | Continuous | 2 × 36 × 72" vessels | Industrial, 24/7 supply |
Inside the softener, step by step.
Hard water passes through beads of ion-exchange resin, which hold on to calcium and magnesium and release sodium. The diagram shows a metered softener in service, part by part.
- 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.
When the resin needs a recharge.
The meter tracks how much water has passed. When the resin is almost used up, the valve regenerates it, either straight away or at a quiet time such as late at night. A twin system hands over to its second tank, so the supply carries on.
- 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 vary from valve to valve. Some include a second backwash, and the up-flow Regal 100 and 200 push brine upward through the resin, which uses less salt.
What hard groundwater stops doing.
Heaters stay clear
- Water heaters and boilers stay free of scale
- Dishwashers and coffee machines are protected
- Taps, valves and pipes stay clear
- Kettle elements stay clean
Better every day
- Soap lathers with less
- Fewer marks on glasses and dishes
- No white crust on taps or shower glass
- Less time spent descaling
Economical to run
- Salt and water used by meter, not by clock
- Clack and CE control valves
- Low-power electronics
- Serviced by our team in Saudi Arabia

Same engineering, any size of building.
Every Regal shares metered regeneration and proven control valves. A villa in Riyadh and a hotel in Jeddah get the same design, only larger or smaller.
- Sized to your supply's hardness and flow
- Pairs with CrownGuard filtration for roof-tank water
- An unsoftened drinking tap fitted as standard practice
- Maintenance plans from a fixed annual fee
Softening in Saudi Arabia, answered.
Q1What is a water softener?
Q2Which Regal is right for us?
Q3Can the family drink softened water?
Q4How often does it need salt?
Q5Softener or filter: which do I need?
Q6Who installs and looks after it?
Regal in Saudi Arabia
About half of Saudi Arabia's drinking water is desalinated. The rest comes from groundwater, and that is where the hardness lives: groundwater feeding Riyadh's blend measured 197 to 281 mg/l, close to the ministry's 300 mg/l limit.
Hard water leaves scale in kettles, water heaters, dishwashers and roof-tank fittings. Regal softeners remove the calcium and magnesium behind it, from a 10-litre under-sink unit to twin vessels for hotels, priced in riyals.
Common questions
Is Riyadh water hard enough to need a softener?
It can be. The groundwater in Riyadh's blend measured 197 to 281 mg/l hardness, and the mix changes with the source. Where scale shows on taps and machines, a softener is worth fitting.
Does the summer heat make scale worse?
Yes. Hardness drops out as scale faster in hot water, so roof tanks and water heaters in summer see the most of it. Softening protects heaters and kettles most.
Can a softener go before a reverse osmosis unit?
Yes. On hard groundwater supplies, softening first helps keep scale off the RO membranes. Regal is often paired with our RO range.
Supplied, installed and serviced in Saudi Arabia
Saudi supply is a mix of desalinated water and groundwater. Where groundwater is blended in, as in Riyadh, the water can be hard enough to scale heaters and machines, so we check your supply before choosing a system.
Tell us your city, whether the site is on mains or tanker water, and what the system is for. We specify it, quote in riyals and install it.
Source: Al-Hamzah & Fellows, Water 16(13), 1810 (2024).
Where we work
- Riyadh
- Jeddah
- Across Saudi Arabia
Talk to the team
Which Regal does your building need?
Tell us the city, the building and what the water feeds. We recommend the Regal that fits and a maintenance plan, priced in riyals.





