Harvey Water Softeners
We supply, install & maintain Harvey water softeners to homes across Hertfordshire, London & Essex. Known for their efficiency and reputation for reliable machines Harvey water softeners are one the industries leading manufacturers.
Speak to an ExpertDiscover the Harvey Water Softener Range
Harvey water softeners have built a strong reputation for producing compact, reliable water softening systems for homes across the UK. Designed and manufactured in Britain, Harvey systems are engineered to deliver consistent softened water while operating efficiently in modern households.
One of the key advantages of Harvey water softeners is their twin cylinder design. This technology ensures a continuous supply of softened water by allowing one cylinder to regenerate while the other remains in service, meaning your home never runs out of softened water even during periods of higher demand.
At Capital Softeners we supply and install a range of Harvey water softeners designed to suit different household sizes, installation spaces and water demands. Their compact cabinet design allows many models to fit neatly under a kitchen sink while still delivering reliable performance throughout the home.
Our Harvey range includes:
- Minimax Innova – a compact twin cylinder softener designed for modern homes where installation space is limited.
- Minimax M3 – a highly efficient system suitable for many family homes, providing reliable softened water throughout the property.
- Minimax Major – a higher capacity system designed for households with greater water usage.
- Minimax Big Blue – a larger system designed to handle higher demand while maintaining strong water flow.
All Harvey systems are designed to eliminate limescale, protect boilers and appliances, and improve water quality throughout your home.
Below you can explore the Harvey models we supply and install, along with the key features of each system.
Harvey Minimax Innova Water Softener

The Harvey Minimax Innova water softener is designed and manufactured in Britain specifically for UK plumbing systems. Using Harvey’s proven twin cylinder technology, it provides a continuous supply of softened water throughout the home.
Its compact design allows it to fit neatly under most kitchen sinks while delivering reliable performance and efficient limescale protection for everyday household use.
Harvey Minimax Innova Features:
- Twin cylinder
- Non – electric
- Meter controlled
- 24/7 softened water
- Mini curved block salt
- 10 year parts | 2 year labour warranty
- Ideally suited for households of 1-5 people
- Suitable for all types of plumbing systems
- Economical – low salt consumption
- Compact size can fit under kitchen sink
- New I-Lid feature (WIFI connectivity) – receive salt refill updates
- Made from 62% recycled plastic
Harvey Minimax M3 Water Softener

The Harvey Minimax M3 water softener is a British made system designed to deliver reliable softened water for modern homes. Built using Harvey’s proven twin cylinder technology, it provides a continuous supply of softened water throughout the property.
The system uses easy to load block salt, making it simple to refill and maintain, and is compatible with most UK plumbing systems. It also comes with a 10 year parts warranty for added peace of mind.
Harvey Minimax M3 Features:
- Twin cylinder
- Non – electric
- Meter controlled
- 24/7 softened water
- Block salt (easy to load 4kg blocks)
- Ideally suited for households of 1-5 people
- Suitable for all plumbing systems
- 10 year parts | 2 years labour warranty
- Economical – low salt consumption
- Compact size can fit under kitchen sink
Harvey Minimax Major Water Softener

The Harvey Minimax Major water softener is designed to supply larger households with a reliable and uninterrupted flow of softened water. Using Harvey’s proven twin cylinder technology, it ensures soft water is always available even during periods of higher demand.
The system is highly efficient and offers options to use different types of salt depending on your preference, making it a flexible and economical solution for homes with higher water usage.
Harvey Minimax Major Features:
- Twin cylinder
- Non – electric
- Meter controlled
- 24/7 softened water
- Block or tablet salt can be used in this water softener – salt storage is 20kg
- Ideally suited for larger households use. 6+ people
- 5 year parts | 1 year labour warranty
- Economical – low salt consumption
- This water softener is split into two cabinets – the actual softener and the salt storage tank.
- Suitable for all types of plumbing systems
Harvey Minimax Big Blue Water Softener

The Harvey Minimax Big Blue is a high capacity water softener designed for larger homes with higher water demand. Its larger cabinet allows for greater salt storage, meaning it does not need refilling as often as smaller models.
With the ability to produce over 10,000 litres of softened water per day, the Big Blue provides reliable performance and a continuous supply of softened water throughout the property.
Harvey Minimax Big Blue Features:
- Twin cylinder
- Non – electric
- Meter controlled
- 24/7 softened water
- Uses tablet salt – salt storage is 65kg
- 5 year parts | 1 year labour warranty
- Ideally suited for larger households 8+ people
- Suitable for all types of plumbing systems
Other Brands We Supply and Install
Kinetico Softeners
EcoWater Softeners
Micropure Water Softeners
Harvey Water Softener FAQs
Harvey water softeners are known for their compact design, efficient performance and reliable twin tank technology. Below are answers to some of the most common questions homeowners ask when considering a Harvey water softener for their home.
Harvey water softeners use a twin tank system that removes calcium and magnesium from hard water through a process called ion exchange. This prevents limescale from building up in pipes, boilers and appliances while ensuring softened water is always available in the home.
No. Harvey softeners use a twin cylinder design, meaning while one tank is supplying softened water the other can regenerate when required. This ensures a continuous supply of softened water throughout the home.
Yes. Many Harvey water softeners are designed to be compact enough to fit inside a kitchen cupboard, making them ideal for modern homes where installation space may be limited while still delivering reliable softened water.
Didn’t find and answer?
If you cannot find the answer you are looking for above, our team is always happy to help. We can provide advice on choosing the right Harvey water softener for your home, explain installation requirements and help you decide which system best suits your household water usage. Please feel free to get in touch and one of our specialists will be happy to assist.