Best Water Softeners And Filtration Systems Reviews UK
The Top Rated Models In 2019

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If you are looking for a review of all the best water softeners in the UK, you have found the right place. 

crown water softener-by-harveys

We review all the latest and best water softener systems on the market, to give you peace of mind that you will be choosing the right product for your home.

Below, in the table, the water softener reviews start with the most highly rated first, then descend accordingly. For people who are in a hurry, you can use the table. For people who want a more in-depth review, you can scroll further down the page, where we provide all the pro's and con's for each.

Best Water Softeners And Filtration Systems Comparison Chart

Editors Choice
Harveys Crown Water Softener
Dimensions 46 X 21 X 49 cm
Warranty 5 years
Special feature Compact twin tank
ScaleWatcher 2 Star. Electronic water conditioner
Dimensions 14.5 x 8.5 x 5.2 cm
Warranty 10 years
Special feature Prevents line scale
Water2buy AS500 Water Softener
Dimensions 56 x 34 x 66 cm
Warranty 5 years
Special feature Ion exchange
W2B800 by Water2buy Water Softener
Dimensions 22.5 x 47.5 x 11 cm
Warranty 5 years
Special feature Ion exchange
WB200 by Water2buy Water Softener
Dimensions 52 x 22 x 65 cm
Warranty 10 years
Special feature Ion exchange

The 6 Best Water Softeners And Filtration Systems On The Market Reviewed

The Harvey water softener review. This model is the Harvey`s Crown Water Softener, it is a non-electric, two tank model. Only available colour is white. Small size perfect for storage and maintenance. It works efficiently in any office, house or apartment. It depends only on water pressure to function. Long-lasting and affordable product when compared to others.

All the inner parts can be moved without difficulty to accommodate the pipeline and water system of your home or whichever location you choose to install it. It’s appropriate either for a large family group or a person living on its own. With its two tanks, it can regenerate at any moment during the day or night and use 50% less water. 

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The Best Water Softener In The UK
  • 5 years warranty
  • Comes with instructions for simple installation.
  • Includes two blocks of salt for free.
  • Comes with the water hardness test kit.
  • Designed particularly for the U.K.

Manufactured by one of the best water softener companies in the UK, the W2B800 by Water2buy is an efficient unit designed to supply lime scale free water to homes with up to 10 people.

This 25kg water softener features a slim tall design that will easily fit within your garage or basement. It can supply up to 3680 litres of water each day. Like other Water2Buy water softeners, the W2B800 features ultra quite operation making it a good option for home use. It also comes with an installed by-pass valve, one inch fittings and power supply.

It’s designed to use any type of softening salt and has a cabinet with a salt capacity of 39kg. To ensure that you save on softener salt, the W2B800 will only use salt during regeneration which takes an average of 30 minutes. The built in mixer valve allows you to adjust the water hardness. This metered water softener automatically begins the regeneration process once a pre-set amount of water has been used. It can also delay the regeneration process to 3am for convenience. Water2buy offers a 7 year warranty and 30 day money back guarantee to ensure you’re fully satisfied with your purchase.

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  • Quiet operation makes it a good option for home use
  • Slim tall design saves on floor space
  • High capacity water softener will supply up to 3680 litres of water per day for up to 10 people
  • Fast regeneration of 30 minutes which can be delayed until 2am adds convenience
  • Its easy to adjust water hardness thanks to the built in mixer valve
  • This water softener will use different types of softener salt
  • 30 day money back guarantee provided
  • The water softener kit doesn’t include essential components such as waste, overflow and connection hoses which must be bought separately

The W2B500 assures you 100% limescale elimination from your domestic water. Designed for hard water areas, the W2B500 gets seamlessly integrated into your existing plumbing system.

The device can handle water of up to 500 PPM hardness. Promising a flow rate of 1250 litres per day, which comes down to 118 litres per minute at 2.45 bar of inlet pressure. This makes it highly suitable for a mid sized family.

Looking at the filtration side, the device allows the use of block, crystal or tablet salts for filtering. However, for the sake of efficiency, it is advised to use salt only during the regeneration process. The regeneration process cleans the patented IonX™ resin and helps in efficient working. Though before buying consider the fact that the device works only in the pressure range of 1.03 to 6.89 bar with a temperature range of 0 to 40°C

  • High quality fittings
  • Adjustable program to meet your needs
  • Easy to install
  • Good value for money
  • Could be noisy
  • Requires additional hardware for setup

The WB200’S versatility and efficiency are what make it one of the best water softeners for home use. It’s specifically designed to eliminate lime scale in hard water in an efficient way. The WB200 by water2buy comes in a compact 18kg unit that will fit under your kitchen sink. It can provide up to 1250 litres of softened water per day which is enough for a family of 4. The design includes a pre fitted by-pass valve, ¾ fittings and power supply. Its ultra quiet operation ensures that there’s minimal noise wherever it’s installed.

The wb200 is designed to use all types of salt including block and tablet. To ensure efficiency, it only uses salt when regenerating which takes approximately 30 minutes. It’s also designed to automatically begin regeneration when a pre-set amount of water has been softened. This feature is programmable allowing you to set it to regenerate any time during the day or night. Water2buy offers a 7 year warranty on the wb200 and a 30 day money back guarantee if you’re not satisfied with your unit.

  • Compact design saves on space
  • Versatile unit that uses all types of softening salt
  • Automatic regeneration allows the unit to work continuously with minimal human input
  • Up to 1250 litres of softened water supplied each day
  • Quiet operation makes it one of the better products on the market for home use
  • ¾ connections (22mm) ideal for most modern homes
  • 30 day money back guarantee to ensure you’re completely satisfied with your unit
  • This unit doesn’t include connection, waste and overflow hoses which must be bought separately

Another alternative to salt based water softeners, the Scalewatcher Limescale Control 2 Star is an electronic water conditioner that doesn’t remove the dissolved minerals that make water hard.

Instead, it uses patented audio frequency signals to alter the shape of lime scale crystals so that they wont stick onto your home’s pipe work.

One feature that makes the Scalewatcher Limescale Control 2 Star one of the best hard water treatment systems is its compact build and ease of installation.

It weighs a mere 499 grams and installation involves mounting the unit close to a power outlet and up to a meter or more away from the pipe, wrap and secure the coil around the pipe, attach signal cable to the unit and power it on. It consumes just 3.85 watts of electricity meaning you won’t need to worry about high electricity bills. The Scalewatcher Limescale Control 2 Star is designed to last up to 20 years. It comes with a 6 month money back guarantee and 10 year warranty.

  • Small compact unit saves on space
  • Easy to install and no need to hire a plumber
  • It uses patented radio frequency signals which have been proven to be 98% effective in de-scaling hard water
  • Low electricity consumption doesn’t bloat your electricity bills
  • Designed to last up to 20 years
  • You don’t need to purchase softener salt or change filters
  • 6 month guarantee to ensure that you’re satisfied with your purchase
  • It needs to be installed within 3 meters from a power outlet due to limited length of the cable

If you prefer a salt free water softener, the water softener alternative by Water Filter Man is a good option. This unique water filter does not replace, remove or add any minerals or chemicals to softened water. Rather, it uses a unique process called Template Assisted Crystallisation. This process converts the minerals that make water hard into harmless microscopic crystals. Besides de-scaling hard water running through it, this filter will also loosen up scale build up within your home’s plumbing extending your pipe work’s lifespan.

It comes in a compact design that installs on ¾ inch connections. The ¾ inch threaded fittings for connecting to your pipe work are included in the kit. This scale prevention filter has been tested and found to be 99.6% effective in de-scaling hard water and pipe work. Unlike conventional salt based water filters that require adding softener salt every few months, this unit requires filter replacement after about 3 years. It comes with a 3 year guarantee on parts and fixings.

  • Compact wall mounted design saves on space
  • This water filter doesn’t add, remove or replace any minerals or chemicals in your water
  • The filter will de-scale up to 756,000 litres of water before need of replacement
  • It will remove scale from water as well as your home’s pipe work
  • Little or no water pressure loss
  • Doesn’t run on electricity saving on energy bills
  • Difficult to install and might require hiring a plumber


Hard water running through your home’s pipe work can cause lime scale to build up within the plumbing and make cleaning and maintaining appliances such as coffee makers difficult and expensive. Investing in a water softener system can help you solve this problem. There are many water softener and filtration systems to choose from. In this review, you’ve seen the best units available in the market today. Each water softener and filtration system reviewed has its own unique features that make it ideal for a specific set of needs.

For example, if you want to de-scale hard water as well as your home’s pipe work, the Scalewatcher Limescale Control 2 Star is a good option (see here). On the other hand, if you have a small family and need a water softener that continuously supplies water for everyday use without need to regenerate, the Crown by Harveys is a good choice (found here).

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A Mini Guide To Water Softeners Including Common Problems Associated With Hard Water

The below problems will over time mean that you’ll spend more on detergent and other cleaning products. It also means that you’ll pay more on appliance and plumbing maintenance not to mention pay a higher heating bill.

The image shows what limescale looks like when built up in your pipework.

  • Hard water leaves soapy residue on utensils, clothes and appliances after cleaning
  • It can cause residue build up within appliances limiting their life
  • It requires more energy to heat and boil compared to soft water
  • Hard water leaves residue within plumbing which can lead to clogging and corrosion

Solving The Hard Water Problem

Water softener and filtration systems are an easy and economical way to turn hard water soft. These appliances come in a variety of sizes and shapes designed to meet different household needs. Water softener systems are installed alongside your plumbing, converting hard water to soft before it’s delivered through the taps. The water softener can be either electricity driven or non-electricity driven.


The most common water softeners operate through a process known as ion-exchange. They contain resin beads with sodium salts. Hard water passes through the resin beads, replacing mineral elements such as calcium with sodium. Some of the available appliances can also use a magnetic field or potassium chloride instead of sodium.

Finally we suggest you consider the below points before investing in a water softener:

  • The water softening capacity of the appliance
  • The amount of water and salt used during regeneration
  • How much water the unit will soften each day
  • Price
  • Your existing pipe work
  • Ease of use and maintenance
  • Manufacturer warranty and after sales support

About the Author Harry Thompson

Hi, I'm the founding guy of Product Spy. Highly experienced in home and garden appliances through years of online research. I want to help everyone in the UK by streamlining their research when buying a new product. I will be putting the hours in researching to find the best products so you don't have to.