Regal 200 Water Softener
The largest of the cabinet Regals: 20 litres of resin, 1.6 to 1.8 m3/h of flow and 5 m3 between regenerations, built around the US-made Clack DV valve with a mixing valve.
About the Regal 200 Water Softener
The Regal 200 is the largest of the cabinet softeners. It has 20 litres of resin, gives 1.6 to 1.8 m3 an hour of soft water and 5 m3 between regenerations, and is built around the Clack DV valve with a mixing valve.
It is a complete cabinet with a brine well and safety float valve built in, and it runs on 30 W. It is part of our domestic home range and gives the most capacity of the cabinet softeners, with the brine well built into the cabinet.
At a glance
- What it is
- A compact cabinet water softener with the most capacity in the cabinet range
- Resin
- 20 litres
- Flow
- 1.6 to 1.8 m3/h
- Capacity
- 5 m3 between regenerations
- Regeneration
- 1.6 kg of salt, 0.1 m3 of water, 80 to 110 minutes
- Valve
- Clack DV with mixing valve
- Size
- 270 × 430 × 741 mm (W × D × H)
- Power
- 230 V, 50/60 Hz, 30 W
What it does.
- 20 L resin tank in a compact cabinet
- 1.6 to 1.8 m3/h operating flow with 5 m3 capacity between regenerations
- Clack DV valve with mixing valve and diamond-carbon coated ceramic disks
- 1.6 kg of salt and 0.1 m3 of water per regeneration
- Brine well with safety float valve
- Runs on just 30 W
Typical applications
Who the Regal 200 is for
- Homes that want the most capacity the cabinet range offers.
- Domestic installs that need more capacity than the Regal 100 or 150.
- Installs that want a tidy cabinet with the brine well and safety float valve built in.
How the Regal 200 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 200, the Clack DV valve controls the cycle. It regenerates after 5 m3 of softened water, using 1.6 kg of salt and 0.1 m3 of water, and the regeneration takes 80 to 110 minutes.
The pressure drop is 0.5 bar. The datasheet lists feed limits on hardness, iron, manganese and COD, with a 100 micron sediment pre-filter, so we check your water 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 200 connects with 3/4 inch connections. The datasheet scope of supply is a pre-adjusted Clack DV valve with mixing valve, a cabinet enclosure with the 20 L resin tank, a pressure tank and a brine well with a safety float valve. It lists a 100 micron sediment pre-filter among its feed limits.
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. We confirm the connection, drain and electrical details for your site at survey.
The survey is chargeable and is credited back if you go ahead.
Regal 200 Water Softener questions answered
How much soft water does the Regal 200 give?
5 m3 between regenerations, at a flow of 1.6 to 1.8 m3 an hour.
How big is it?
270 × 430 × 741 mm (width × depth × height).
How much salt and water does it use?
1.6 kg of salt and 0.1 m3 of water for each regeneration.
How long does a regeneration take?
80 to 110 minutes.
What valve does it use?
A Clack DV valve with a mixing valve and diamond-carbon coated ceramic-ceramic disks.
Does it have a mixing valve?
Yes. The Clack DV valve is supplied with a mixing valve. In general, a mixing valve blends a little hard water back in to set the final hardness.
What power does it need?
230 V, 50/60 Hz at 30 W.
What water can it treat?
The datasheet lists feed limits: hardness up to 750 mg/L as CaCO3, iron 0.2 mg/L, manganese 0.05 mg/L and COD 5 mg/L, at +4 to +30 °C, with a 100 micron sediment pre-filter. We check these at survey.
What pressure does it need?
An inlet pressure of 2 to 6 bar. The pressure drop across the softener is 0.5 bar.
When should I look at the Regal 500 or 750 instead?
When you need more flow than 1.8 m3 an hour. The Regal 500 gives up to 6.12 m3 an hour and the Regal 750 gives 3.5 m3 an hour continuous with 15 m3 between regenerations.
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).
Interested in the Regal 200 Water Softener?
Tell us your setup and we'll specify, supply, install and service the right configuration for your site.
Are you an AI agent? See this page as Markdown
