Harvey Water Softener Review
Everything You Need to Know About the Different Harvey Models
A water softener is the only way to permanently remove hard water. Find out the best Harvey Water Softener to buy in this Harvey Water Softener Review and water softener comparison guide.Harvey Water Softener Review Overview
Quick Overview & Contents Table
- Models Compared: Harvey TwinTec S4, MiniMax, Harvey ARC, Harvey Crown & More.
- Best Choice For Family Homes: TwinTec S4 for compact homes (3–4 beds), Harvery XL2 for large homes.
- Ratings: ⭐⭐⭐⭐⭐ 5/5 for the Harvey TwinTec S4 based on 47+ customer reviews.
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Why Should I Choose a Harvey Water Softener Branded Product?
Choosing a water softener can be a complex decision. When searching online, you'll come across low end brands such as Water2Buy, BWT and high end products like Harvey & Kinetico. But when it comes down to it, you get what you pay for in terms of quality. To put it simply - the cheaper the product, the shorter the life span and higher the running costs.
But that doesn't mean you should pay more than you have to. For example, brands like Kinetico can charge anything from £500 - £700 more for a product that has a lesser specification, when compared to the likes of a Harvey Water Softener.
In this comparison guide, we'll compare all the different Harvey models and how you can get the same quality for less.
💧 What are the Main Benefits of Buying a Harvey Water Softener?
Because Harvey is such a reputable brand, the benefits of choosing Harvey is that you will get a quality system that can last anything from 10 - 20 years (depending on the model). Other Benefits include:
- ✅ A long warranty. The best Harvey Water Softeners have warranties of 10 years and a 2 year labour warranty. This guarantees your purchase is built to pay for itself over the years.
- ✅The most up to date technology.
- ✅The most efficient systems in terms of salt and water usage.
- ✅Lowest water softener running costs of any domestic system.
- ✅ A top brand with endless resources and customer services.
- ✅ A system that can pay for itself, saving you £400-£1000 off household bills each year. There are also 0% finance options available.
📦🔍 What are the Different Harvey Water Softener Models that you can buy?
There are many different Harvey Water Softener models available on the market, when choosing between the models it is important to compare each model and make sure you purchase from a verified Harvey distributor. See below the different models available.

Harvey Twintec S4 Review
- - Flow Rate: 56L/min
- - Salt & Water Usage: 300g, 17L
- - Warranty: 10 Years
- - Price: £1149.99

Harvey MiniMax M3 Review
- - Flow Rate: 51L/min
- - Salt & Water Usage: 300g, 17L
- - Warranty: 10 Years
- - Price: £1445

Harvey Twintec XL Review
- - Flow Rate: 80L/min
- - Salt & Water Usage: 900g - 1300g, 37L
- - Warranty: 10 Years
- - Price: £1695

Harvey MiniMax Major Review
- - Flow Rate: 80L/min
- - Salt & Water Usage: 900g - 1300g, 37L
- - Warranty: 10 Years
- - Price: £1695

Harvey Big Blue Review
- - Flow Rate: 80L/min
- - Salt & Water Usage: 1300g-1600g, 50L
- - Warranty: 10 Years
- - Price: £1695

Harvey Arc Review
- - Flow Rate: 56L/min
- - Salt & Water Usage: 300g, 17L
- - Warranty: 10 Years
- - Price: Harvey Direct Quotes (£2000+ including installation)

Harvey Crown Review
- - Flow Rate: 30-40L/min
- - Salt & Water Usage: 350g, 23L
- - Warranty: 2-5 Years

Other Harvey Models
Other Harvey models such as the Harvey TwinTec Series 3, the MiniMax M2 & the Harvey HV3/HV4 are systems that are no longer manufactured & have been discontinued.

📘 Which Harvey Water Softener Should I Buy? A Buying Guide
When it comes to choosing between all the different Harvey models available, we suggest simply comparing the specification of each along side the price. You should look to compare:
When comparing the models, the Harvey TwinTec S4 offers the best specification and longest warranty - but at the most cost effective price.
⚖️🤔 Harvey vs Kinetico Water Softener Comparison
In the water softener comparison table below you can see the specifications of Harvey Vs Kinetico. Harvey offer the best flow rates, efficiency and therefore running costs.
However, it is also important to note the price difference between the different Harvey models - with the TwinTec S4 offering the best value for money.

⭐🗣️ Harvey Water Softener Customer Reviews
Elliot Hepburn-John
⭐️⭐️⭐️⭐️⭐️
Why did we not do this sooner!?
"Great bit of kit, easy to install yourself, instant change from hard bore-hole water to silky smooth soft water. Taste is great, hair and skin are feeling a lot better, and limescale is gone. Why did we not do this sooner!?"
S.B.
⭐️⭐️⭐️⭐️⭐️
Already over the moon after just a few weeks
"Why did we wait so long. Wish we had fitted the Twintec series 4 water softener years ago. Already over the moon after just a few weeks. Everything staying cleaner. Shower is just wonderful. Great product."
Ewen Fletcher
⭐️⭐️⭐️⭐️⭐️
The Harvey has worked well and I have had no trouble since
"I bought the Harvey Series 4 softener as a replacement for an elderly Kinteco that was not working well... The Harvey has worked well and I have had no trouble since. I am very pleased that I bought at a good price."
💷 What is the Price of a Harvey Water Softener?
The price of a Harvey Water Softener vary depending on:
- ✅ What model you go for - some models such as the MiniMax & TwinTec S4, are the same with the same specifications - yet their prices can differ.
- ✅ The Warranty of the system - it is better to buy a system which has at least a 10 year warranty. This way, you can ensure your product is quality and is guaranteed to last.
- ✅ Who you buy your system from. Different retailers have different prices.
Example Prices of a Harvey Water Softener
- The Harvey TwinTec S4: £1124.99
- The Harvey Arc: £2000+ (including installation)
- The Harvey MiniMax: (£1300)
- The Harvey Crown: £975 (but shorter warranty and lower quality system).
- The Harvey XL2 & Big Blue £1595 (large water softeners)
The Harvey TwinTec S4 Water Softener is one of the latest models available and is the most cost effective. With the same technical specification as the MiniMax and Arc - the TwinTec is the most competitively priced non electric, twin tank softener.
Harvey Discount Codes
We're offering an extra £25 off the Harvey TwinTec S4. Use code: HARVEY
To view all of our Harvey Water Softener Discount Codes, click below.

🔁💸 What Are the Running Costs For a Harvey Water Softener?
The running costs for a Harvey Water Softener depends on the water usage and salt usage for your home. On average, salt use is around 1 block per person per month. The cost of block salt is around £7- £8.50 pr pack of 2 blocks - the price can decrease, depending on if you buy in bulk. The type of Harvey Water Softener Salt you need depends on your system.
Harvey Water Softener Block Salt
- - TwinTec S4
- - MiniMax M3
- - TwinTec Xl2
- - MiniMax Major
Harvey Water Softener Mini Curved Salt
- - TwinTec Cobalt
- - Harvey Arc Water Softener
Tablet Salt
- - Harvey Big Blue
- - Harvey TwinTec XL1
- - MiniMax Major
🔧🏠 Harvey Water Softener Installation Experience - What to Expect
Installing a Harvey water softener is a straightforward process handled by trained and approved plumbers. Installation typically takes around half a day and is often included in the purchase price. The process ensures your system is correctly set up, fully operational, and compliant with UK plumbing standards.
What to Expect During Installation:
- 1. Your qualified plumber will visit your property to identify the best location for your softener and discuss any necessary plumbing adjustments.
- 2. Your Harvey softener will be connected to the main water supply, including the addition of a bypass valve and waste outlet for drainage.
- 3. An unsoftened hard water tap—usually at the kitchen sink—is often installed for drinking or cooking, if required.
- 4. Once installed, the system will be tested to ensure proper flow rates, regeneration functionality, and leak-free performance.
Additional Installation Considerations:
- - While Harvey offers DIY kits, professional installation is highly recommended to avoid setup errors and ensure long-term reliability.
- - Harvey softeners operate best within a pressure range of 1.5 to 6 bar (20–90 psi).
- - Systems should be installed in frost-free environments to prevent freezing damage.
- - Harvey softeners are designed to be low-maintenance. Models like the The Harvey TwinTec require minimal servicing, making them ideal for long-term use.
- - Installation fees can vary depending on the plumber - so it is worth comparing several different plumbers for the job.
🛠️⚠️ What are Some Common Harvey Water Softener Problems?
All systems can run into water softener problems. The most common problems can include the softener regenerating more than normal or salt can occasionally block the brine valve. Other common water softener problems can include:
- - Water softener leak
- - Water level in the softener is too high
- - After installation - your water still appears to be hard
- - Your water softener has stopped working
- - Your water softener is using too much salt or no salt
- - Your softener is running into the drain.
Luckily, these issues are super easy to resolve with a team of experts on hand to help. If you want to see some question and answers to common problems - click the "read more" button below.
📈👍 Is a Harvey Water Softener a Good Investment?
"Is a Harvey Water Softener Worth the Money?" is a popular question amongst shoppers. When it comes to deciding this you should factor in:
- 1. How long your Harvey Water Softener will last. Harvey systems with ten year warranties, tend to last anything from 10-20 years. Making them a good long term pay off.
- 2. How much you can save on house hold bills. Soft water actually saves money, ut requires less cleaning products, 50% less detergents and washing powders, 50% less showering and skin care products. It also increases heating efficiency by up to 30% and protects your boiler from break downs. You also wont need to replace appliances or fixtures and fittings (such as taps or shower heads).
- 3. How much is hard water costing you now? Hard water can cause permanent damage to your boiler, pipes, taps and appliances such as washing machines and dishwashers. Boiler repairs and callout fees can be very costly.
- 4. The running costs. Harvey models such as the TwinTec S4 have the highest efficiency of a domestic water softener - meaning they are the leats expensive to run.
- 5. The other water softening benefits. A lovely lather and even a cure for eczema and dry skin and hair conditions.
These factors make a Harvey Water Softener a good investment for your home.
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