Collection: Water Softeners Ireland
Culligan Arc Water Softeners
Using innovative water-softening technology, you can save money on your household bills as you say goodbye to limescale with softer water at home.
The Culligan Arc is non-electric and uses twin-tank technology to provide soft water 24/7, making it the premium water softener. It has been designed for optimum efficiency, providing peak performance in a stylish modern cabinet that fits neatly under your kitchen sink.
Boasting enhanced engineering, an environmentally friendly enclosure, and rigorous testing, the Culligan Arc ensures unparalleled performance. It excels in meeting the demands of households with up to 3 bathrooms in regions with challenging water conditions, delivering optimal soft water solutions.
Culligan Ecosoft Softener
Ideal for homes with 1–6 people, delivering consistent soft water throughout the house
Advanced limescale protection helps prevent damage to pipes, boilers, and appliances
Compact, space-saving design – easily fits under the sink or in small utility areas
Whole house water softening without any noticeable reduction in water pressure
Improves the lifespan and efficiency of washing machines, dishwashers, and heating systems
Culligan Water Softener
Minimax M3 Water Softener
Say goodbye to limescale and hello to pure comfort with the Minimax M3 Water Softener.Engineered in the UK and built to last, the M3 uses advanced twin-cylinder technology to deliver softened water 24/7 – no downtime, no fuss. It operates without electricity, relying entirely on water pressure, making it one of the most energy-efficient systems available.
Compact enough to fit under your kitchen sink, it's designed for modern Irish homes and families looking to protect their plumbing, appliances, and skin from the harsh effects of hard water.
Best Home Softener
✅ Perfect for 1–3 bathroom homes
✅ Twin-cylinder system –
✅ Non-electric operation
✅ Smart i-Lid technology
✅ Compact design
✅ Mini Curve Salt Blocks
✅ Up to 3,000L softened water per day
✅ Fast 11-minute regeneration
✅ Eco cabinet
✅ Durability tested
✅ Magnetic lid & precise metering
✅ 56L/min peak flow rate
✅ Use Grade A salt
✅ 3-Year Warranty included (battery excluded)
Other Models
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Culligan 6 Stage Reverse Osmosis Unit
Regular price €480.00Regular price€500.00Sale Sale price €480.00 -
EWT Dual - Perfect Soft Water and Perfect Drinking Water
Regular price €1,150.00Regular price€1,699.00Sale Sale price €1,150.00
Professional Installation
Celtic Water Solutions offers professional installation with all our water softeners, saving you time and hassle. Culligan Harvey Arc water softeners are usually installed under the kitchen sink but can also be fitted in a garage, utility room, shed, or boiler room to suit your home.
If space is limited or the mains shut-off is outside, we can install the unit on an external wall in a weather-proof cabinet. Our experienced installation team ensures a neat, reliable finish every time.
Ireland’s New 4th Gen Water Softener – Minimax M3
Schedule a consultation or get a tailored quote for the Minimax M3 Water Softener.
Enjoy 100% Limescale Free Home
Limescale builds up quickly and is difficult to remove if left untreated. Culligan Water Softeners stop limescale at the source, protecting your home, plumbing, and appliances while delivering the benefits of soft water.
Suitable for both existing homes and new builds, our water softener systems help reduce existing limescale and prevent future hard water damage.
Water Softener Repair & Service
We provide expert water softener service and water softener maintenance with fast, reliable nationwide support
What Do Our Customers Say
Frequently Asked Questions
How does a water softener work?
How does a water softener work?
Water passes through the internal cylinder of the softener unit where high-quality resin beads collect the hard water salts.
The softened water is then passed back into the system for use around the house. After a period of time, the resin beads become full and must be regenerated, this is done automatically.
A brine solution is drawn up from the tank and passed over the resin beads in the cylinder during a backwash. This releases the hard water salts which are then flushed away leaving the resin ready to begin its collection again.
The regeneration process is fully automatic and takes place late at night when there is no soft water requirement.
Which water softener is right for me?
Which water softener is right for me?
The size of a water softener for your home depends on the hardness levels in your area and the daily consumption of water.
The first step in finding the right system for you is to calculate your Daily Softening Requirement as it indicates the amount of hardness your softener will have to remove daily. The daily softening requirement is calculated using your water hardness and your water consumption.
Water Hardness:
It is the measure of the total amount of calcium and magnesium dissolved in water. Usually represented as mg/L (milligrams per litre), it is a critical metric to buy the right-sized equipment. Guessing this number could lead to an improperly sized system. If you are unsure of the water hardness in your area, it is better to get a water test done first.
Water Consumption:
Another factor to consider while calculating Daily Softening Requirement is the daily water consumption. One of the easiest ways to find it out is by checking your water meter and then use this information to figure out how much water you use in a day.
Daily Softening Requirement:
It is calculated by multiplying your daily water use by water hardness. Let’s take an example.
If the water hardness in your is 400 mg/L and daily water usage is 2000 litres, the Daily Softening Requirement works out to be 800000 mg per day.
In most cases, CWS Clack Cabinet Water Softeners are a popular choice as they can easily fit under a kitchen sink and are suitable for a family of 2-8 members. Our larger water softening systems can easily cope up with demanding households, due to their higher water softening capacity and greater efficiency.
What is involved in the water softener installation process?
What is involved in the water softener installation process?
Installation of the water softener is covered in our package. Our engineer would bring all the necessary equipment, tools, and accessories needed for installation.
The process itself should take anywhere between 2-3 hours including all the plumbing work. The engineer would then set the settings on the digital meter and complete the installation process.
Will it fit under my kitchen sink?
Will it fit under my kitchen sink?
A CWS Clack Cabinet Water Softener usually fits under most kitchen sinks. The dimensions of our cabinet water softener are 640 x 220 x 440 mm (H x W x D).
If there is not enough space under your sink, a water softener can be installed outside your house with a protective cover.
Check out our Installations Images to see various installation options available.
Do water softeners require maintenance
Do water softeners require maintenance
Yes, they will require salt to be topped up, this can be done by yourself very easily. It is also recommended that water softeners be serviced on an annual basis to keep the equipment in prime condition.
How often do I need to add salt to my softening system?
How often do I need to add salt to my softening system?
It depends on how often your system needs to regenerate. The more your softener regenerates the more salt you will consume. Generally, you will add salt to your brine tank about every 6-8 weeks.
Can I drink softened water?
Can I drink softened water?
In short, yes you can. However, it is not recommended as softened water could contain a high amount of sodium which is not suitable for babies and people on low-sodium diet.
This is why we add a free drinking water filter to the package that removes all the excessive sodium present in the water.
Why are CWS water softeners better than others?
Why are CWS water softeners better than others?
All softeners, regardless of price, should soften your water (reduce the hardness to acceptable levels).
The question is how long will the unit last? How often does it regenerate? What is the warranty? How long has the company been in business? Does the softener regenerate based on time rather than how much water has been used? How easy is it to change the settings and service the unit? How quickly can you get your questions answered and your problems solved?
CWS Clack Water Softener uses a high-quality Clack valve which is the best water softening valve in the Irish market.
Furthermore, at Celtic Water Solutions, customer service is something that we regard highly. No matter what your problem is, we are always there for you.
We serve customers who got their softening system installed by us almost 15 years ago and it still works great. Such is the longevity and reliability of CWS Clack Water Softener.