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Kinetico Sumo 2 Non Electric Water Softener

by Kinetico
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£779.99

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Non-Electric, High-Efficiency Home Water Softener

Modern homes with multiple bathrooms and high-pressure systems need a softener that can keep up. The Innovative Hyperflow™ Media Tank is designed to maintain maximum water pressure across your entire home. Whether you have a power shower or a high-demand combi-boiler, the Kinetico Sumo Water Softener ensures a continuous supply of soft water without the pressure drops associated with traditional systems.

Why Choose the Kinetico Sumo Water Softener?

It is time to expect more from your home's water. The Kinetico Sumo Water Softener combines unrivalled smart programming with industry-leading efficiency to deliver a performance that leaves traditional systems behind.

Non-Electric Water Softener Technology

One of the most sought-after features in premium systems is "power-free" operation. The Kinetico Sumo is a non-electric system, meaning there are no motors to burn out and no timers to reset after a power cut. It operates solely on the energy of moving water, making it one of the most reliable and eco-friendly water softeners available today.

Precision Calibration for Maximum Salt Efficiency

Not all hard water is the same. A system set for the extreme hardness of the South East would be wasteful in a medium-hard water area. By calibrating the softener to your specific location, you ensure the system only uses the precise amount of salt required, minimising waste and maximising your savings.

a grey and blue water softener with the word sumo on the front

Certified Quality: WRAS Approved

This water softener is WRAS approved, meaning it meets the UK’s strict Water Supply (Water Fittings) Regulations for safety and compliance. WRAS approval confirms that the system is safe to connect to the mains water supply and will not contaminate drinking water or affect water quality. The approval for the Sumo I applies to cold water installations only (up to 23 °C), which is exactly how water softeners are designed to operate in UK homes. Choosing a WRAS-approved system gives you confidence that your installation is compliant, installer-friendly, and accepted by water authorities across the UK.

Maximum Salt Efficiency & Lower Running Costs

The Kinetico Sumo Water Softener uses a Highly Efficient Softening Resin that provides superior ion exchange compared to standard media. This allows the Kinetico Sumo to produce more soft water while using less salt and water during its regeneration cycle. For the homeowner, this translates to significant savings on salt refills and lower annual operating expenses.

Rapid Regeneration Time (12 Minutes)

While traditional softeners take over an hour to reset, the Kinetico Sumo features a lightning-fast 12-minute regeneration cycle, ensuring your home is never without a supply of beautifully soft water

the inside of a kinetico sumo water softener

Easy Installation with Integrated Bypass

Installation is simplified with our Integrated By-Pass Valve, allowing for a neater and faster setup under your sink. We also provide ultimate flexibility when it comes to maintenance; the robust salt container is designed to take both block salt and tablet salt. You aren't locked into one expensive brand, you have the freedom to choose the most convenient option for you.

Dimensions

601mm x 632mm x 345mm (HxDxW)

Installation Kit A Sumo Installation kit includes a by-pass assembly which conforms to BS14743 and enables the softener to be isolated from the water service lines for maintenance and service. This also maintains the water supply when the system is disconnected. 

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Efficiency, Sustainability, and Home Protection

Investing in a Kinetico Sumo is a proactive commitment to your home’s operational integrity. By utilising advanced, non-electric softening technology to eliminate limescale at the source, the Sumo ensures that heating elements and internal pipework remain clear and fully optimised. This preservation of peak thermal efficiency allows boilers and high-value appliances, such as dishwashers and washing machines, to operate within their intended design parameters, significantly lowering energy overheads and preventing premature mechanical failure. Beyond the mechanical protection of your property, the transition to Kinetico’s precision-softened water provides a sustained improvement in water quality for personal care and household maintenance, all while reducing the environmental impact of harsh chemical cleaners.

Experience the Soft Water Difference

From the moment you install a Kinetico Water Softener, you will notice the change. You'll enjoy softer skin and hair, brighter laundry, and sparkling surfaces that stay clean for longer. By removing the minerals that cause scale, you’re also extending the life of your boiler, dishwasher, and washing machine, saving you money on repairs and energy bills.

kinetico sumo water softener manual

Sumo Water Softener Manual

What's Included

Everything you need is included with your product.

  • Kinetico Sumo Water Softener
  • 2 x 3/4” BSP in/out adaptor
  • 4 x O-ring
  • 1 x In/out retaining bracket
  • 1 x Bracket retaining pin
  • 1 x 2m of 5/8” overflow tubing
  • 1 x 2m of 1/2” drain tubing 
  • 1 x 2cc silicone tube
  • Installation Manual

The Impact of Hard Water on Your Home

Over 60% of homes in the UK have hard water, around 16m homes. Obvious signs, such as frequent equipment failures, noisy boilers, diminished water pressure, and the accumulation of chalky, crusty deposits, point to the presence of hard water. Only a water softener can eliminate this issue, and it will also clean your pipes of chalky deposits that have built up over time. If left untreated, you may see signs such as reduced water pressure, damage to household appliances, leaking and burst pipes, poor water quality, reduction in your clothes quality, and increased energy costs. Additionally, you will almost certainly face the burden of extra cleaning to remove the unpleasant chalky deposits.

Limescale Damage to a Tap
Limescale Damage to a Shower Door
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Peace of Mind Included

The damage caused by limescale can be both frightening and expensive. Why wait for it to happen?

Choosing the right softener can be tricky. Our Complete Guide to Water Softener Technology and Installation breaks down everything you need to know to make an informed decision for your household.

Warranty Information

2 Years parts and labour

Full Specification

Model Sumo 2
Width 345mm
Depth 632mm
Height 601mm
Salt used per regeneration 0.59 
Water used per regeneration 38 Litres
Regeneration Time 8-15 Minutes
Flow Rate @1 Bar Pressure Drop 35 Litres per minute
Flow Rate @ 2 Bar Pressure Drop 45 Litres per minute
Pipe connections - in/out 3/4” BSP male
Drain Drain Kit and hose suitable for 32mm & 40mm. Waste Pipe supplied
Overflow 5/8” OD Barb - Hose supplied
Minimum/Maximum Operating Temperature 2° - 49°C
Minimum pressure 1.5 bar (dynamic)
Maximum pressure bar

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