RWS 250 Tandem Water Softening System
A powerful whole-building treatment system with a total resin capacity of 500 L, for large facilities and high water consumption.
Technical specifications
View all- Connection size
- 1”
- Max. flow rate
- 6.1 m³/hour
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Free installation
2+8 Year Warranty
24/7 Technical Support
Fully automatic tandem softening at industrial capacity
The Rainwater RWS 250 Tandem Fully Automatic Softening System has been developed for hotels, restaurants, industrial facilities and high-capacity businesses. With 250 L x 2 of mineral resin, a tandem WS1 Twin valve and a maximum service flow rate of 6.1 m³/hour, it reduces the effects of hard water on plumbing and equipment.
500 L total resin capacity
The 250 L x 2 mineral resin configuration provides high softening capacity in intensive, continuous use.
Tandem WS1 twin valve
Fully automatic tandem valve technology helps the system manage its regeneration and service cycles efficiently.
High-flow use
With a maximum service flow rate of 6.1 m³/hour, it meets the whole-building treatment needs of large businesses and facilities.
Supports equipment life
By reducing limescale and hardness deposits, it helps protect water heaters, boilers, machinery and pipework.
Highlights
Smart monitoring
System status and salt level are monitored, and maintenance notifications are sent.
Softening + filtration
A complete modular system can be built with a pre-filter, carbon and UV.
RWS 250 Tandem Water Softening System
Adding value to your life with certification to international standards
The confidence of flawless quality: freshness and peace of mind for everyday life.
CE certificate
FDA certificate
Water Quality
TÜV Cert ISO 14001
NSF certificate- TÜV Cert ISO 9001
Düzen Norwest
Hacettepe University
Istanbul Technical University
Our systems use PARKER – LIQUIFIT – LEGRIS brand components and comply with the US Food and Drug Administration (FDA) regulations, CFR 21.
Product description
Hard water leaves limescale in the plumbing and in every appliance that uses water; over time it narrows pipes and reduces the efficiency of boilers and machines. Rainwater RWS 250 is a water softening system that reduces the hardness of the water entering a building or facility using the ion exchange method.
Who is Rainwater RWS 250 suitable for?
For hotels, restaurants, industrial facilities and large businesses. It offers 2 FRP tanks (21” × 62”), 2 × 250 L (500 L in total) of mineral resin and a maximum service flow rate of 6.1 m³ per hour.
How does it work?
As water passes through the resin-filled tank, calcium and magnesium ions are retained by the resin and the softened water flows on to the plumbing. When the resin is saturated, the system automatically recharges itself with the solution from the brine tank (regeneration), then backwashes and rinses. In the two-tank tandem design, one tank works while the other regenerates, so the supply of soft water is never interrupted.
What does it offer in daily use?
- Less limescale build-up in plumbing and equipment
- Helps protect boilers, water heaters, washing machines and dishwashers
- Automatic regeneration; minimal user intervention
- Tandem WS1 Twin valve, fully automatic
Installation and maintenance
The system is installed at the water inlet of the building or facility, with the right capacity chosen for your needs. Where required, it can be completed modularly with sediment, carbon and UV filters. Contact us for capacity selection, installation and maintenance.
Technical specifications
Capacity
- Service flow rate (max.)
- 6.1 m³/hour
- Number of tanks
- 2
- Tank size
- 21” × 62”
- Mineral resin
- 250 L x 2 (500 L in Total)
Purification
- Valve type
- Tandem (WS1 Twin)
- Bed velocity
- 40 m³ / m³ resin / hour
- Tank material
- FRP
Power and size
- Connection size
- 1”
General
- Model
- RWS 250
- Order code
- 12745
- Distributor
- Rainwater Dış Tic. San. ve Tic. A.Ş.
Other whole-house water purification
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Frequently asked questions
What does Rainwater RWS 250 do?
It reduces water hardness caused by calcium and magnesium using the ion exchange method, helping to prevent limescale build-up in plumbing and equipment.
What is the capacity of Rainwater RWS 250?
It offers 2 × 250 L (500 L in total) of mineral resin and a maximum service flow rate of 6.1 m³ per hour.
Does water softening make the water salty?
No. Salt is used only to recharge the resin and is flushed to the drain during regeneration; the water does not become salty.