ALFILTRA BASIC water softener

FILTRASOFT Basic water softener in combi housing FILTRASOFT Basic water softener in combi housing
Water softener Basic without lid (control valve CLACK WS1) Water softener Basic without lid (control valve CLACK WS1)
Basic-Enthärtungsanlage anschließen & in Betrieb nehmen – Die Schritt-für-Schritt Anleitung! Basic-Enthärtungsanlage anschließen & in Betrieb nehmen – Die Schritt-für-Schritt Anleitung!
Water softener Basic without lid with control valve CLACK WS1 Water softener Basic without lid with control valve CLACK WS1
Clack WS1 control valve (front view) Clack WS1 control valve (front view)
Never again limescale Never again limescale
Clack WS1 control valve (rear view) Clack WS1 control valve (rear view)
Dimensions of the Basic water softening systems Dimensions of the Basic water softening systems
Clack WS1 setting Clack WS1 setting
Kevin von Lieblingsessen über das Alfiltra Sorglospaket – Seine Erfahrungen und sein Fazit Kevin von Lieblingsessen über das Alfiltra Sorglospaket – Seine Erfahrungen und sein Fazit
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UVP €999.00 20%
€799.00
incl. VAT excl. shipping costs
  Available - Delivery between 6/11/26 and 6/12/26
  • Professional water softening system for single-family homes up to 9 people (Freely selectable capacity depending on your water hardness and consumption)
  • No more limescale - removed (calcium and magnesium) demonstrably and reliably
  • intelligent, electronically volume-controlled control valve with digital display

Performance class (capacity)

The capacity depends on your water hardness and water consumption. You can determine the capacity using our capacity calculator or this rule of thumb:

Water hardness rule of thumb
Medium-hard water (8–14 °dH) Number of people x 7.5
Hard water (14–21 °dH) Number of people x 10
Very hard water (over 21 °dH) Number of people x 12.5

Example (4 people with a water hardness of 20): 4 x 10 = 40

Sizing a water softener

20 (1-3 Pers.)
40 (2-5 Pers.)
60 (4-8 Pers.)

Montageservice

The installation service includes the professional installation of the water softening system by our trained technicians.
Included in the price are:

  • the installation of the terminal block

  • the connection to the sewage system

  • the commissioning of the plant

  • all necessary materials (e.g. two adapter pieces)

  • the journey within Germany

Further information and requirements

ohne
Deutschlandweite Montage (inkl. Anfahrt)

Connection accessories

Do you need a connection kit for installation?
Please select the appropriate option:

  • Without connection set:
    If you already have a suitable connection fitting and hoses and you do not need any new parts.

  • With connection set (without bypass block):
    If a bypass block is already installed but you need new hoses.
    Included are:

    • two flexible hoses for connection to the system

    • wastewater hose

    • Test set for residual hardness testing

  • With connection set (complete):
    If there is no connection yet.
    Included are:

    • Bypass block (connection fitting)

    • two flexible hoses for connection to the system

    • wastewater hose

    • Test set for residual hardness testing

ohne
Austausch-Set (bestehende Anlagen)
Anschluss-Set (Erstinstallation)

Often bought together

Your advantages only with us

  • Excellent expertise for 20 years
  • Highest quality in every component
  • fair price-performance ratio
  • in-house, trained fitters
  • no risk through purchase on account (from 500 €)
  • Free shipping in Germany (from 250 €)
Advice
You can reach our customer service from Monday to Thursday from 9 a.m. to 5 p.m. and Friday from 9 a.m. to 3 p.m.

BASIC water softener

  • Professional water softening system for single-family homes up to 9 people (Freely selectable capacity depending on your water hardness and consumption)
  • No more limescale - removed (calcium and magnesium) demonstrably and reliably
  • intelligent, electronically volume-controlled control valve with digital display
  • Economical in operation - reduced salting (saves up to 50% salt compared to full salting)
  • Worry-free package optional : on request with installation service by our own master craftsmen
  • Quality product Made in Germany with components from the EU and the USA

Say goodbye to limescale with our best-selling water softener - Ideal for single-family homes with up to 9 people

This fully automatic, single-column water softener with electronic, water-flow-controlled valve CLACK WS1 is easily installed upstream of your existing domestic water supply. Using the proven ion exchange process, the system completely removes hardness-causing minerals and thus limescale from your tap water. When the salt reservoir is exhausted, the system regenerates itself automatically using the stored salt. An integrated safety float valve protects the salt container from overflow, and the fiberglass-reinforced pressure tank withstands pressure surges of up to 8 bar. Thanks to our sophisticated ECO-INJECT SYSTEM, the system saves up to 50% salt (salt-saving mode).

If you would like to learn more about how water softening works and its benefits, please visit our information pages on water softening .

Highlights:

  • Electronically controlled volume control valve CLACK® WS1 with optimal capacity utilization through intelligent regeneration control
  • Freely selectable capacity depending on your water hardness and consumption (please select)
  • ECO-INJECT-SYSTEM salt saving (saves up to 50% salt with virtually the same capacity)
  • Safety float valve to protect against overflow (for example, in the event of a power failure during regeneration)
  • Connections: 1" threaded plastic fitting, professional quality
  • Fiberglass reinforced quality pressure tank (pressure resistant up to 8 bar)
  • Regeneration phase can be set to nighttime.
  • Infinitely adjustable residual hardness, thanks to built-in blending device
  • Built according to DIN-1988, NFS-certified heat exchanger resin
  • Plug & Play - The system arrives at your home pre-programmed.
  • Very easy assembly or with assembly service (please select)
  • The system can pump wastewater to a height of up to 2 meters.
  • The use of a backwash filter is recommended to avoid damaging the water softener.
  • 2-year warranty (up to 7-year warranty with annual maintenance)

Scope of delivery:

  • Ready-to-use water softening system model BASIC with control valve CLACK WS1 including power supply
  • High-performance ion exchange resin DOW Marathon C (already filled into the pressure tanks)
  • Safety float valve integrated into the salt container
  • Detailed, illustrated operating and programming instructions

Optional (please select):

  • Connection fitting with bypass function and 2 flexible hoses (70 cm length), including 3 meter wastewater hose
  • Installation of the system by our factory customer service, including 1 x 25 kg of special salt for water softeners (we will gladly install further accessories, such as a water filter, for an additional charge)

    The installation fee includes the installation of a connection block, the connection to the wastewater, the commissioning of a basic water softening system, travel costs and the following materials: Two reducing nipples or transition pieces from the existing pipe system to the connection block.

    The flat rate only applies under the following conditions:
    1. There is approximately 30 cm of straight pipe (horizontal or vertical) after the water meter/water filter.

    2. In the immediate vicinity of the aforementioned line, there is a freely accessible parking space for the system (see dimensions).
    3. A freely accessible wastewater pipe is present in the same room.
    4. An electrical connection is available in the immediate vicinity of the installation site.

    Any necessary modifications and additional materials will be billed separately. Please note that our technicians are not permitted to work on your electrical installation.

    To clear up any potential uncertainties, please send us pictures of the installation site.


Installation and maintenance service for water softening systems

Alfiltra assembly team

Upon request, we will install your water softener for a fixed price anywhere in Germany. Thanks to our four locations, we can offer this installation service, including travel, at a competitive fixed price.

Here's how it works:

  • You can order the desired system including installation service in our online shop, by phone or by email.
  • To clear up any potential uncertainties, please send us a few photos of the installation location beforehand.
  • We will contact you by phone to arrange an appointment.
  • Our technician will professionally install the system at your location.

The Alfiltra quality promise

Highest quality

  • Our systems are made in Germany from our own production.
  • Carefully selected materials for durability and reliability
  • Up to 7 years warranty on selected systems with annual maintenance

Maximum safety

  • Pay conveniently and securely by invoice, without financial risk.
  • Positive customer reviews confirm the high level of satisfaction.
  • Quick and uncomplicated help should anything not be to your satisfaction

Competent team

  • Available throughout Germany for fast and competent service
  • Four locations guarantee personal support and fast response times.
  • If you have any questions or concerns, our support team is always available to help.

5 Stars (203)
4 Stars (39)
3 Stars (2)
2 Stars (0)
1 Star (0)

Customer Photos

Latest Reviews

5.00
Lena H.
Nov 28, 2025
Variant: Worry-free package Basic 40 Water softener / descaling system incl. installation
The product (so far) fulfills its purpose and runs without problems...
The product fulfills its purpose (so far) and works without any problems. Installation was quick and easy.
10 people found this review helpful
5.00
Johann B.
Dec 29, 2025
Variant: Worry-free package Basic 40 Water softener / descaling system incl. installation
The device has been working perfectly since it was installed 3 months ago. W...
The unit has been working perfectly since it was installed three months ago. We are a family of four, and the unit provides soft water with a hardness level of 5 (previously 20.5), which is also pleasant to drink. Most importantly, there is no longer any limescale buildup in appliances such as kettles, coffee makers, washing machines, toilet flushing systems, etc.
2 people found this review helpful
5.00
Udo B.
Sep 1, 2025
Variant: Worry-free package Basic 40 Water softener / descaling system incl. installation
The system runs quietly and without any problems so far. Thank you...
The system runs quietly and without any problems so far. Thanks to its compact size, it doesn't get in the way in the basement.
2 people found this review helpful
5.00
Harry S.
Aug 3, 2025
Variant: Worry-free package Basic 40 Water softener / descaling system incl. installation
Excellent product with easy self-cleaning (once a year...)
Excellent product with easy self-cleaning (once a year with Resin Clean - takes 30 minutes). The experienced installer was very friendly and the installation was completed in less than 3 hours.
1 person found this review helpful
4.00
Kurt W.
Mar 20, 2022
Perfect facility for us
1 person found this review helpful
5.00
Vasile
Mar 18, 2022
Very good
1 person found this review helpful
3.00
Frank V.
Oct 27, 2020
Self-installation is straightforward, good and easy-to-understand operating/installation instructions...
Self-installation was straightforward, and the operating/installation instructions were clear and easy to understand. The blending mechanism didn't work well initially, but after installing a replacement part, it was fine. The system didn't produce enough softened water, likely due to a technical defect. The system was replaced. Operating the system is simple.
1 person found this review helpful
5.00
Daniel Z.
May 31, 2026
Variant: Worry-free package Basic 40 Water softener / descaling system incl. installation
So far without problems, and easy to use and set up.
0 people found this review helpful
5.00
Dennis K.
May 17, 2026
Variant: Worry-free package Basic 20 Water softener / Descaling system
The system works very well
0 people found this review helpful
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Technical specifications

Downloads

Technical data for water softening systems Basic (0.00 MB)
Installation & operating instructions Basic water softener (1.54 MB)
Water softening general brochure (0.14 MB)

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Domestic water filter / backwash filter in 1"

A backwash filter should generally be present in every installation. This filters sediments and solids from the drinking water. If you don't have a pre-filter yet, please order one at the same time.

Primus F backwash filter for house connection 1''
Primus F backwash filter for house connection 1''
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Primus FK backwash filter 1'' with pressure reducer
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Salt for ion exchange systems

This water treatment system works with the ion exchange process. This means that salt is required to operate. How much salt the system needs depends on the water consumption and water hardness. You can calculate your salt consumption using our online calculator.

Salt tablets for water softeners and ion exchangers, 5 x 25 kg bags
Salt tablets for water softeners and ion exchangers, 5 x 25 kg bags
€74.00
€74.00 (€0.59 / kg)
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warranty extension for basic systems

If you wish, you can extend the warranty to a total of 5 years.

Warranty extension for basic systems +3 years
Warranty extension for basic systems +3 years
€99.00
€99.00
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incl. VAT excl. shipping costs
  Available

Resin cleaning and disinfection for ion exchangers

This special solution of preservative and demineralized water ensures that the resin of your ion exchanger is refreshed. Use once a year or after the system has been shut down for a long time.

RESIN CLEAN resin cleaner for water softeners 1000 ml
RESIN CLEAN resin cleaner for water softeners 1000 ml
€19.90
€19.90 (€19.90 / l)
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incl. VAT excl. shipping costs
  Available

RESIN CLEAN resin cleaner for water softeners 5000ml
RESIN CLEAN resin cleaner for water softeners 5000ml
€89.00
€89.00 (€17.80 / l)
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incl. VAT excl. shipping costs
  Available

flexible hoses 1"

Ideal for connecting to an existing connection fitting. Please make sure to order two hoses (inlet and outlet).

Reinforced hose / flexible hose 1'' (75 cm long) for drinking water
Reinforced hose / flexible hose 1'' (75 cm long) for drinking water
€30.00
as of â‚¬30.00
incl. VAT excl. shipping costs
  Available

Reinforced hose / flexible hose 1'' (100 cm long) for drinking water
Reinforced hose / flexible hose 1'' (100 cm long) for drinking water
€42.00
as of â‚¬42.00
incl. VAT excl. shipping costs
  Available

Reinforced hose / flexible hose 1'' (150 cm long) for drinking water
Reinforced hose / flexible hose 1'' (150 cm long) for drinking water
€57.00
as of â‚¬57.00
incl. VAT excl. shipping costs
  Available

Reverse osmosis system for the kitchen - Your own drinking water source

The perfect complement to your water softener. While the softener provides soft water for the whole house, the REOS SLIM at the sink ensures 100% pure drinking water – free of sodium and other residues. A clever bonus: The soft water protects the reverse osmosis membrane from limescale and significantly extends its lifespan.

REOS SLIM reverse osmosis system with direct flow
REOS SLIM reverse osmosis system with direct flow
€399.00
€399.00
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Basic-Enthärtungsanlage anschließen & in Betrieb nehmen – Die Schritt-für-Schritt Anleitung!
Basic-Enthärtungsanlage anschließen & in Betrieb nehmen – Die Schritt-für-Schritt Anleitung!

In diesem Video zeigen wir Ihnen ausführlich, wie Sie die Basic-Enthärtungsanlage fachgerecht installieren und Schritt für…

Clack WS1 setting
Clack WS1 setting
Kevin von Lieblingsessen über das Alfiltra Sorglospaket – Seine Erfahrungen und sein Fazit
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Kevin von Lieblingsessen_ – Bekannt aus diversen TV-Formaten und Stage-Koch der Offerta über das Alfiltra Sorglospaket ...

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UVP €699.00
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Salt content (Max.)bis 75 kgbis 75 kgbis 100 kgbis 40 kg
Quantity-controlled regeneration
economical salting
residual hardness adjustable
safety swimmers -
Sloping sewage system -
quality components EU/USA-
Uninterrupted soft water supply-- -
app control---
DVGW certificate---