Regal 500 Water Softener
A high-capacity, floor-standing water softener built around a 10 x 54 inch pressure tank and a CE 1 inch control valve: supplied media-ready for Ecomix and cation exchange resin, with a separate 125 litre brine tank for domestic and light-commercial demand.
About the Regal 500 Water Softener
The Regal 500 is a floor-standing water softener built around a 10 x 54 inch pressure tank, a CE 1 inch control valve and a separate 125 litre brine tank with overflow protection. It gives up to 6.12 m3 an hour of service flow at a 1 bar pressure drop.
It is supplied as a media-ready assembly: the tank is delivered without media, and you choose Ecomix or cation exchange resin on order. The datasheet describes it as domestic and light commercial.
At a glance
- What it is
- A floor-standing softener assembly with a separate brine tank
- Service flow
- 6.12 m3/h at a 1 bar drop
- Tank
- 10 × 54 inch pressure tank (63 L)
- Brine tank
- 125 L with overflow protection
- Valve
- CE 1 inch, volume-based regeneration
- Media
- Supplied without media: Ecomix or cation exchange resin
- Power
- 230 V, 50/60 Hz, 30 W
- Model code
- RF1054CE
What it does.
- Up to 6.12 m3/h of service flow from a 10 x 54 inch pressure tank
- CE 1 inch control valve with volume-based regeneration: delayed, immediate or both
- Separate 125 L brine tank with overflow protection
- Media-ready for Ecomix and cation exchange resin
- Twin, duplex or up to 6 systems on one controller
- Multilanguage menu and two external device connections
Typical applications
Who the Regal 500 is for
- Domestic sites that need more softening demand than a cabinet softener handles.
- Light commercial sites with higher softening demand.
- Installs where quick installation matters: the datasheet describes it as a ready set.
- Sites that want to choose between Ecomix and cation exchange resin.
- Installs that may grow: twin, duplex or up to 6 systems can run on one controller.
How the Regal 500 Water Softener works
In general, a water softener swaps the calcium and magnesium that cause hard water for sodium, using a bed of ion exchange resin. When the resin is used up, the softener regenerates with salt brine and rinses the hardness away to drain.
In the Regal 500, the CE 1 inch valve regenerates by volume: delayed, immediate or both. In general, a delayed regeneration waits for a set time, and an immediate one starts as soon as the volume is reached. The valve menu is multilanguage.
The datasheet gives a service flow of 6.12 m3 an hour at a 1 bar pressure drop, and a backwash flow of 6.12 m3 an hour at 1.7 bar. The capacity between regenerations depends on the media you choose and on your water, so we work it out at survey.
Which one should you choose?
The Regal range runs from under-sink cabinets to twin alternating vessels. The right one depends on how much soft water you need, and how fast.
Regal 100
You have limited space under the kitchen sink and want a cabinet softener: 10 L of resin, 1.0 to 1.2 m3/h.
Regal 150
You want a little more capacity under the sink: 15 L of resin, 1.3 to 1.5 m3/h and 3 m3 between regenerations.
Regal 200
You want the most capacity in the cabinet range: 20 L of resin, 1.6 to 1.8 m3/h and 5 m3 between regenerations.
Regal 500
You need a floor-standing softener with a separate brine tank and up to 6.12 m3/h of service flow, with the media you choose.
Regal 750
You want a ready-loaded commercial softener: 75 L of resin, 3.5 m3/h continuous and 15 m3 between regenerations.
Commercial Softener RF1465SO1
You want a 14 × 65 inch tank with a CE 1 inch valve and a large 146 L brine tank, with your choice of resin or Ecomix.
Regal Twin 3672
You need soft water that never stops: two 36 × 72 inch vessels working in turn, with 18.2 m3/h of service flow.
Installation and servicing
The Regal 500 connects with G 1 inch inlet and outlet. The brine connection is G 3/8 inch and the drain is G 3/4 inch. The connection height is 1435 to 1540 mm and the dry weight is 15 kg, before media and water.
The datasheet lists a 230 V, 50/60 Hz supply at 30 W, an inlet pressure of 2 to 6 bar and a feed temperature of +4 to +30 °C. The media is not in the assembly: you specify Ecomix or cation exchange resin on order, and we quote it with the unit. Two external devices can be connected to the controller.
The survey is chargeable and is credited back if you go ahead.
Regal 500 Water Softener questions answered
What flow does the Regal 500 give?
6.12 m3 an hour of service flow at a 1 bar pressure drop.
Does it come with resin?
No. It is supplied as a media-ready assembly without media. You specify Ecomix or cation exchange resin on order.
How big are the tanks?
A 10 x 54 inch pressure tank (63 L) and a 15 x 17 x 36 inch brine tank (125 L) with overflow protection.
How does it regenerate?
By volume, delayed, immediate or both, controlled by a CE 1 inch valve.
What does the multilanguage menu mean?
The valve menu can be set to different languages, so the controller is easy to read on site.
Can I run more than one?
Yes. The datasheet lists twin or duplex operation, or up to 6 systems on one controller.
What power does it need?
230 V, 50/60 Hz at 30 W.
What connections does it have?
G 1 inch inlet and outlet, G 3/8 inch brine and G 3/4 inch drain.
What pressure and temperature can it take?
An inlet pressure of 2 to 6 bar and a feed temperature of +4 to +30 °C.
Regal 500 or Regal 750?
The Regal 500 has a higher service flow (6.12 m3 an hour) and you choose the media. The Regal 750 comes loaded with 75 L of resin and gives 3.5 m3 an hour continuous with 15 m3 between regenerations. We size from your water and use at survey.
Do you supply and install it?
Yes. We supply and install it. The survey is chargeable and is credited back if you go ahead.
Related products
Figures come from the manufacturer datasheet (PDF). Reviewed November 2026.
Supplied, installed and serviced across the UK
Across most of southern and eastern England, mains water is very hard. Rain filtering through chalk and limestone dissolves calcium and magnesium, and that scale coats heating elements, so we size every system to your supply and your equipment.
Tell us about your site and what you need the water for. We specify the system, fit it and keep it running under Comprehensive Maintenance.
Source: Drinking Water Inspectorate, Drinking Water Quality in England triennial report (2020–2022).
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