Twin Cylinder

Our UK-made water softener is ultra-reliable, eco-friendly, and compact. It merges top-tier twin-cylinder softening tech with a WiFi-enabled i-Lid for easy salt level monitoring via our app.

Our UK-made water softener is ultra-reliable, eco-friendly, and compact. It merges top-tier twin-cylinder softening tech with a WiFi-enabled i-Lid for easy salt level monitoring via our app.

Single cylinder or Twin cylinder?

Dual cylinders

Single vs Twin Cylinder Water Softener

The twin-cylinders inside a Harvey™ Water Softener are filled with millions of microscopic resin beads. Each bead has a negative charge, while calcium and magnesium carry positive charges in water. This means that, as the calcium and magnesium passes through the resin beads, they are attracted to one another. All that exits the water softener is pure, softened water, while the minerals stay behind in the beads. Sodium taken from the Harvey™ block salt completes the exchange.

It’s one of the smallest, non-electric twin cylinder softeners on the market.

We have been manufacturing water softeners for over 40 years, making us the UK’s largest manufacturer and number one seller of twin-cylinder water softeners. Our factory trained specialist installers and surveyors help bring the British designed Culligan Harvey Water Softener into your home.

You will start to notice the softened water removing existing scale from your home within two weeks. The time it takes to disappear completely will depend on the amount of scale you already had in your home.   Typically, you can expect   In 6 weeks, scale will be gone from your kettle. In 6 months, scale will be gone from your hot water cylinder ... Read More >

Discover the benefits of our smart HarveyArc water softener with our 90-Day Money Back Guarantee. Designed to meet the needs of every home, the HarveyArc sets a new standard in water softening technology. As the smallest twin cylinder softener available, the HarveyArc works diligently to keep your home free from limescale. Enjoy reduced cleaning time, lower energy and water bills, and the added bonus of softer skin and hair for your entire family. Try the HarveyArc today and feel the difference, with the confidence of our 90-Day* Money Back Guarantee.

The smarter way to get softened water for your home. Designed and manufactured here in the UK our latest water softener is the most reliable, compact and environmentally friendly softener available on the market. It combines the market-leading softening technology of the smallest twin cylinder softer on the market, with the WiFi-enabled i-Lid which integrates with the myHarvey app for automatic monitoring of salt levels.

The regeneration is the most technical part of the water softener. Once the resin has trapped all the hardness minerals it possibly can, a salt water solution (brine) needs to flush through the system to clean it out. The regeneration involves the water softener being flushed for 10 minutes using the block salt that is loaded into the machine. Each cylinder is cleaned one at a time to ensure softened water is provided to your home, uninterrupted. Hard water will never enter your system. The water is used to drive the brine (salt solution) regenerant through the water softener and then flush it ready for the next service cycle. The number of litres used for each regeneration is dictated by the design of the water softener, its size, and efficiency.

The lightbulb moment After first trying his hand as an electrician, then a tyre-fitter, then a plumber, his life changed forever when, in 1975, his wife Ann bought a water softener. He was instantly converted to the benefits. Built for homes in hard water areas, this domestic appliance wasn’t familiar to many back then and Harvey saw the opportunity. Two years later he began selling water softeners door to door in Woking where he was living and then, in 1978, Harvey Water Softeners was born Decades of change (1981-2000): Revolution These were years of big social changes, and the same was true for Harvey. In 1981 he invented the world’s first compact, twin-cylinder softener. Small enough to fit under a sink and able to soften water without interruption, his invention shook up the industry and during the next two decades, Harvey Water Softeners grew and grew. All the while, Harvey’s innovations kept on coming. In 1995 he released the world’s first block salt softener, another step change for softening, and by the turn of the millennium his business had became the largest softener company in the UK. Our modern age (2001-2016): Unstoppable growth A new century and a new beginning for Harvey’s booming business. His son Casey joined the business in 2004; a new generation with new ideas for the future. In 2007, the business moved into a new home too; a 35,000 sq ft factory on Hipley Street in Old Woking, allowing it to expand even further and develop the first water softener designed and built in the UK. As the market for softeners grew, so did the company. Not even the financial crisis of 2008 could put paid to the company’s ambitions, as it carried on growing through banking bailouts, recession and austerity. In 2015, Harvey reached another milestone when he turned 65. He’d built a business from just him and his van into one of Woking’s largest employers – a manufacturing business turning over £20m a year, employing almost 200 staff and selling tens of thousands of softeners every year in the UK and Europe. “I’ve always believed that work has to be fun, so as I’ve built the business here I’ve wanted the people I work with to enjoy coming into the office every day too. The fact that we’ve had so many team members stay for years and even decades is, I hope, proof that this approach has worked.”

Our UK-made water softener is ultra-reliable, eco-friendly, and compact. Designed to fit under the kitchen sink, the advanced twin cylinder design requires no programming or maintenance. Compact design In-app salt monitoring system included​ Modern, stylish design

Why Buy the Best Water Softener? The water softener industry is certainly one where ‘buy cheap, buy twice’ applies. There are some cheaper models of softener on the market but they are by no means as worthwhile. Considering it is a device that your whole water supply passes through, day in and day out, good build quality is essential. Our softeners are rigorously tested and manufactured to a very high standard of quality and materials. The materials are food grade, though I wouldn’t recommend trying to consume your water softener! More Accurate Technology Some of the inferior and older models have complicated electric mechanisms. Firstly, this is a waste of power and secondly they are far less accurate than the precise metering system of Harvey Softeners. Prevent Wastage Unnecessary regenerations waste water and consume more salt. Poorly timed regenerations can let hard water into your supply. In any case, other softeners use more salt and water to regenerate anyway and are therefore more wasteful. If you’ve had one of our home demonstrations, you would have seen that it only takes a small amount of hardness to put a dampener (pun intended) on the some of the benefits of soft water. Dual Cylinders Older machines, especially single cylinder tend to be large and unsightly. I’ve even seen cases where inferior single tank water softeners have been recommended, solely based on cost. Our dual cylinder systems mean that when one tank has reached capacity, the other takes over, leaving the first tank free to regenerate. This means that the flow of soft water is uninterrupted. It also means that the water used during the regeneration is soft, which helps to reduce the amount required. Flow Rates & Pressure Our softeners have a very strong flow rate and can cope with nominal pressures. The combination of our clever design and skilled installers can mean that our softener is still an option where others are not. Conclusion Our block salt softeners boast: Reliability Safe materials The greatest efficiency The optimal technology Great flow rates We’ve been designing water softeners that make a difference to people’s lives for over 50 years. Find out exactly how our water softeners work and discover the science behind their outstanding performance and reliability. Discover The Difference – Take the first step to banishing limescale – see how a water softener works – Find Out More

If you are based in a hard water area, there are plenty of reasons to install a water softener in the home, the main reason being to save money. By process of ion exchange, the water softener will draw out the magnesium and calcium ions, the mineral content which makes it ‘hard’ in the first place. Having soft water flowing through your household will limit the accumulation of scale and scum and will actually provide treatment to areas where it has formed. You will also notice the water feels different, smooth and silky on the skin providing much more effective washes when combined with soap and washing detergents. These are the benefits to your household, the things you will notice immediately. Gradually, you will also find yourself saving a lot more money.  Simple ways to save water Wash vegetables in a bowl, not under a running tap  Don’t use ‘half-load’ programmes on your washing machine – these don’t save much water and its much more efficient to wash a full load each time Keep a bottle of tap water in the fridge – this saves you running the tap until it’s cold every time you want a drink  Shower rather than bathe – a five-minute shower uses a third of the water of a bath Fix dripping taps – a dripping tap can waste up to 15 litres of water a day (it’s quick and easy to replace a worn-out washer) Fit a water-saving device in your toilet cistern – you can get these for free by contacting your water company. If you’d rather not wait, just put a standard two-litre water bottle in there, with sand or pebbles as ballast Turn off the tap while brushing your teeth – this wastes a lot of water unnecessarily Use water wisely in the garden – watering your plants while it’s cool reduces water lost to evaporation, and you can add organic matter to your soil to improve water retention Shopping Soft water is a solvent meaning it can dissolve other chemicals easily. Due to hard water’s mineral content, the water is more inert or less capable of sustaining a reaction. When combined with soap, it won’t create a proper lather leading to you having to waste more and more detergent just to get an effective clean. With soft water you can use a fraction of the amount and still gain a better clean, that will preserve the fabrics of your clothes. We have calculated the following savings based on an average home of a family of four. Item Monthly Cost Percentage Saving You Save Bars of Soap £2.50 50% £1.95 Liquid Soap £2.20 50% £1.10 Shower Gel £1.90 50% £0.95 Shampoo £3.20 50% £1.60 Hair Conditioner £3.20 75% £2.40 Bubble Bath £2.80 100% £2.80 Hand Cream £3.70 75% £2.78 Body Lotion £6.70 75% £5.03 Razor Blades £6.00 50% £3.00 Shaving Soap £2.90 50% £1.45 Floor Cleaner £1.90 50% £0.95 Washing up liquid £1.90 50% £0.95 Toilet Cleaner £2.60 75% £1.95 Bathroom/Kitchen Cleaner £1.60 50% £0.80 Dishwasher Cleaner £3.00 50% £1.50 Shower Shine £1.80 100% £1.80 Washing Powder £6.79 75% £5.10 Fabric Conditioners £3.00 75% £2.25 Dishwasher Powder £7.00 75% £5.25 Dishwasher Salt £1.40 100% £1.40 Washing Machine Descaler £12.00 100% £12.00 General Scale Removers £2.90 100% £2.90 Kettle Descaler £2.20 100% £2.20 As you can see this greatly reduces your shopping bill by over £65. Energy Sales The average household in a hard water area, will gain at least 1.5mm of scale building within its internal plumbing over a year. Scale is an insulator and will transfer the heat of your system less effectively. A buildup of just 1.5mm is enough to reduce your heating efficiency by at least 12%. Again the following figures are provided on the basis of an average family home belonging to two adults and two children. Item Cost Saved Fuel Saving £7.80 Capital Depreciation £13.43 This represents a saving of at least £240 on your heating bill over one year. In addition, softened water is expected to preserve your boiler’s life span to the standard 15 years. Installing a water softener acts as a long term investment, that will save you greater amounts of money over the years. The favourite non electrical twin cylinder water softening unit contains no moving parts, it works automatically and is able to cope with the larger demands of water in the family home. All you need to do is add salt, in the form of block salt that costs as little as £7.58 a month. Independent studies have been undertaken to quantify greenhouse gas reduction through the use of a water softener. One such article concludes that water softeners and RO units together will reduce greenhouse gases equivalent to getting one and a third cars off the road for an entire year! We also have studies showing just how the efficiency of a boiler will drop with just a small amount of scale build up. A water softener will remove all scale from your heating system and prevent any future recurrence, allowing your system to function as it was designed to do. Carbon emissions  Carbon emissions are becoming an increasingly important aspect of our lives in the search for new, environmentally friendly technology. With a Harvey Water Softener, you can lower your carbon footprint while keeping your water and salt usage down, by picking the most efficient softener available. Book a demonstration to find out how you can save money and energy with a water softener.  At Harvey Water Softeners, we're passionate about helping people save money on their household bills. Our water softeners can help you spend less on bottled water, bathroom and cleaning products, repairs and replacements of kitchen and bathroom appliances and fittings. Find out how you can pay for your new water softener gradually with our flexible payment options. Cut Household Costs and save on products, repairs and replacements - spread the cost with one of our flexible payment plans. Click here to explore now. Interested in the benefits of a Harvey Water Softener? Get in touch with our expert Harvey team by filling in the form below. 

There are many different types of water softener on the market today. We, at Harvey Water Softeners specialise in the twin cylinder non electrical version. We have been pioneering the technology for over 30 years and believe it to be the most definitive softener on the market. To explain we must go over the process of how water softening works. Water softeners are attached to your water supply. Usually in the kitchen but also the garage or the roofspace, wherever is most accessible. Hard water enters the softening device at the top and washes down through the cylinder. This cylinder is full of resin beads to enact the process of ion exchange. The beads contain sodium ions supplied by salt that is fed into the device. As a result the calcium and magnesium ions are attracted by the resin beads, whilst the sodium content goes into the water. The hard minerals are removed from the water leaving the water to flow around your household softened. Meanwhile, the water softener has to be regenerated, in which the magnesium and calcium ions are flushed from the system and the resin is recharged with sodium ions for treatment for the next batch of water. The regeneration process can take time, particularly when large quantities of water are being processed. It is also important that it occurs at a precise time, regenerating too soon after treatment and you will waste water. Leave it too late and hard water will get into your system. We have developed a displacement meter that is designed to trigger the regeneration process at exactly the right moment by measuring just how much soft water has been produced. The process of ion exchange and regeneration take place within cylinders, some water softeners function on just a single cylinder, but more effective water softeners function using twin cylinders. Having two cylinders means that you can process greater quantities of hard water. For the average family of four, a single cylinder will have difficulty keeping up with demand since it won’t have time to regenerate properly, meaning that hard water will enter your systems. By contrast a dual cylinder water softener will regenerate constantly, alternating between the two cylinders to cope with demand. To learn more about water softeners, check out our handy consumer’s guide to water softening. We’ve been designing water softeners that make a difference to people’s lives for over 50 years. Find out exactly how our water softeners work and discover the science behind their outstanding performance and reliability.

We are proud to announce our new water softener, the HarveyArc. We have created this product with the environment in mind, cutting the amount of plastic used by 38%.  Every day, over 8 million pieces of plastic make their way into our oceans, killing our wildlife and polluting our planet. We’ve been working hard for years now to find a way to produce our market leading water softener - and all of its resilience, functionality and ergonomic beauty - in a way that will continue to provide you with the highest quality of water, while reducing our environmental impact. The result of our research is now here, and we’re sure you’re going to love it as much as we do! The HarveyArc offers everything our old model did but, rather than being made from fresh plastic, it is now made from 62% recycled plastic from a clean plastic source. This means that 84 tonnes of plastic, which would normally go to landfill, will now be reused to create the HarveyArc. HarveyArc features Our new water softener has a range of great new features and differs from our previous models. Here are some features that are unique to the HarveyArc: Tested to over 1 million cycles, beyond British standards to be robust and reliable Smart shuttle metering  Accurate metering for maximum flow rates Advanced resin bead formula Parallel System for a continuous fresh water supply - both cylinders are in continuous use, so no water is left sitting in a cylinder for any period of time Eco cabinet - made from recycled plastic from a clean source. Curved mini block salt - lighter and easier to load, maximising the space in the water softener The UK’s smallest twin cylinder water softener just got smaller. The HarveyArc is compact enough to fit neatly under your sink, perfect for everyday home use. It is suitable for homes with 1-3 bathrooms. Using our unique twin cylinder design, the HarveyArc supplies your home with softened water 24 hours a day, 7 days a week.  The HarveyArc is non-electric and only regenerates when necessary, which will save you energy and lower your running costs. Rigorously tested to over 1 million cycles at our factory, you have the confidence it is the most reliable water softener on the market.  Click here to start your soft water journey and get a quote today!

Hard water might sound like a minor inconvenience, but it’s more like an uninvited guest that overstays its welcome, causing chaos in every room or area of your home. From the garden to the bathroom, let's take a tour of the areas of your home that are most vulnerable to hard water damage and the pesky limescale that comes with it. Buckle up, because we’re diving into the nooks and crannies of hard water havoc! The Garden Sprinklers and Hoses Your lush green lawn and vibrant flowers depend on a steady supply of water, but hard water can turn your garden's lifeline into a liability. Sprinklers and hoses are prime targets for limescale build-up, which can clog the tiny nozzles and reduce water flow. This can result in uneven watering, leaving parts of your garden parched and others flooded.  Water Features Fountains and ponds can add a touch of serenity to your garden, but hard water can mar their beauty with unsightly limescale deposits. Over time, this build-up can damage pumps and reduce the efficiency of water circulation, potentially leading to stagnant, murky water. Swimming Pools and Hot Tubs Nothing beats relaxing by the pool on a summer's day, or even as the weather warms up maybe a quick dip. But wait, hard water is making your pool and hot tub filters work even harder and look even worse when they start to fail. Similar to water features, this build-up can then damage filters, pumps and reduce the efficiency of water circulation, potentially leading to stagnant, murky water - not so relaxing. The Kitchen Dishwashers Your dishwasher is your trusty sidekick in the battle against dirty dishes, but hard water can undermine its efforts. Limescale can coat the heating elements, making it harder for your dishwasher to reach the temperatures needed for a thorough clean. This means your dishes might come out spotty and less than sparkling. Faucets and Sinks Hard water can leave your kitchen faucets and sinks looking less than pristine. Those chalky white deposits around your faucet base are more than just an eyesore; they can cause corrosion over time, potentially leading to leaks and drips that waste water and hike up your utility bills. Coffee Makers and Kettles If you’re a coffee or tea enthusiast, hard water is your nemesis. Limescale can build up inside your coffee maker or kettle, affecting the sight and taste of your beverages and reducing the appliance’s efficiency. Regular descaling is necessary to keep your morning brew tasting just right. The Bathroom Showers and Tubs Your shower and bathtub are prime real estate for limescale deposits. Showerheads can become clogged, reducing water pressure and turning your refreshing morning ritual into a dribble. Bathtubs can develop stubborn rings of limescale that require serious elbow grease to remove. Toilets Hard water can leave unsightly stains in your toilet bowl, making it look perpetually dirty. Over time, these deposits can also interfere with the flushing mechanism, leading to inefficiencies and potential clogs. Bathroom Tiles and Glass The beautiful tiles and glass surfaces in your bathroom can fall victim to hard water spots and limescale. These deposits can dull the shine and make cleaning a nightmare, as they tend to cling stubbornly to surfaces. The Laundry or Utility Room Washing Machines Your washing machine is another appliance that suffers in silence from hard water. Limescale can coat the heating element and drum, reducing the machine’s efficiency and potentially leading to costly repairs. Clothes washed in hard water might also feel rough and look dingy due to mineral residue. Boilers, Water Heaters and Tanks The unsung hero of your home, the water heater, is especially vulnerable to hard water damage. Limescale build-up inside the tank can insulate the heating element, forcing the heater to work harder and longer to warm your water. This not only drives up energy costs but can also shorten the lifespan of the appliance. The Living Room Humidifiers Humidifiers help maintain a comfortable atmosphere in your living spaces, but hard water can sabotage their efforts. Limescale can clog the mechanisms and create a breeding ground for bacteria, compromising the quality of the air you breathe. Irons If you use a steam iron to keep your clothes looking crisp, hard water can cause problems here too. Limescale can clog the steam vents, leading to less effective ironing and potential water stains on your clothes. The Garage Car Washing Equipment For those who love to keep their cars sparkling clean, hard water is a formidable foe. Car washing equipment like pressure washers and hoses can suffer from limescale build-up, reducing their efficiency and leaving water spots on your vehicle. Combatting Hard Water: Solutions Now that we’ve toured the trouble spots, it’s time to talk solutions. Here are a few tips to keep hard water from wreaking havoc in your home: Water Softeners: Installing a water softener can significantly reduce the mineral content in your water, protecting your appliances and plumbing and everything within your home. We don't recommend having a garden line on a water softener due to sodium content in the water, but that's where our next solution comes in. No more time and energy spent on cleaning, scrubbing or using harsh chemicals in your home as the limescale simply doesn't form. Reverse Osmosis System (and Remin): Installing an RO will strip out all the unwanted and nasty elements from your drinking water including bacteria and viruses as well as PFAS (forever chemicals). Coupled with a Remin device, this allows you to get more of the good minerals that don't create limescale build-up. Regular Cleaning: Regular descaling and cleaning of appliances can prevent limescale build-up. Products specifically designed to tackle limescale are your best bet. Vinegar and Baking Soda: These household staples are great for natural, DIY cleaning. Vinegar is especially effective against limescale when used regularly. By staying vigilant and proactive, you can keep your home safe from the sneaky sabotage of hard water and limescale. Your appliances and fixtures will thank you! For more information or to schedule a demonstration, please contact us by submitting a form or call our customer service team. HarveyArc Water Softener Suitable for the majority of family homes Our latest, high-tech water softening system. Non-electric, dual parallel softening systems means 24/7 soft water, less waste during regeneration and keeps limescale gone for good. For the average family home Twin cylinder Non-electric design Requires Mini Curve salt blocks Daily capacity: 3000 litres Regeneration water use: 17 litres Dimensions: H:487mm x D:438mm x W:202mm BUY NOW Profine ZERO Reverse Osmosis Filter System Pure H20, no contaminants Our latest, high-tech Reverse Osmosis water filter system. Designed to deliver 24/7 fresh and clean, filtered drinking water and removes taste, odours, particulates and PFAS (forever chemicals) Carbon Block pre filter Position: Under-sink mounted. Key function: Taste, odours, heavy metals, PFAS (forever chemicals) and dissolved salt Flow rate: 3 litres/minute Capacity: 7,000L Servicing: Yearly Harvey Engineer Service Compatible with: N/A BUY NOW Get in touch with a Harvey Water Softeners Expert Today Find how you can permanently remove limescale from your home with Harvey solutions