Kinetico Sumo HT Non-Electric Water Softener – Compact & Efficient
- No electricity needed, powered by your water pressure alone, so there's nothing to plug in and nothing to add to your bills.
- Very efficient regeneration, just 270g of salt and 20 litres of water per cycle, done in 12 minutes.
- Fully automatic, no timers or settings to fuss over, it measures your usage and regenerates only when needed.
- Compact under-sink design at just 495 x 230 x 470mm, ideal for homes with limited space.
- 5 year warranty and a strong 30 to 40 L/min flow rate for small to medium homes.
Order today, dispatched within 1-2 working days. Fast UK delivery. Not the right fit? Return it within 30 days.
Product Description
Kinetico Sumo HT Non-Electric Water Softener
Soft water throughout your home, with no electricity and no running costs to power it. The Sumo HT uses the pressure of your own water supply to soften it, so there's nothing to plug in, nothing on your energy bill, and fewer moving parts to fail over its life.
It's built for small to medium homes that want reliable soft water without the bulk. At just 495 x 230 x 470mm it fits neatly under most kitchen sinks, and it looks after itself once fitted. There are no timers or settings to manage: it measures the water you use and regenerates automatically only when needed.
That regeneration is impressively lean. Each cycle takes 12 minutes and uses only 270g of block salt and 20 litres of water, which keeps both your running costs and your environmental impact low. An adjustable eco setting lets you match it to your local water hardness for even better efficiency.
Why households choose the Sumo HT
- Runs on water pressure, no electricity and no socket required
- Just 270g of salt and 20 litres of water per 12-minute regeneration
- Fully automatic, with no timers or controls to set
- Compact enough for most under-sink cupboards
- 30 to 40 L/min flow rate for small to medium homes
- Backed by a 5 year warranty
Specifications
- Dimensions: (H) 495mm x (W) 230mm x (D) 470mm
- Regeneration time: 12 minutes
- Salt use per regeneration: 270g
- Water use per regeneration: 20 litres
- Maximum flow rate: 40 L/min
- Operating pressure: 1 to 8 bar
- Maximum water hardness: 525 mg/L
- Warranty: 5 years
What softened water gives you
No more limescale on taps, tiles and the kettle. Softer skin and hair. Soap and detergent that lathers properly, so you use less. Appliances and pipework protected from scale, so they last longer.
Add a 15mm or 22mm fitting kit and block salt to your order to arrive ready to install. Not sure the Sumo HT is right for your home? Call our team on 0116 276 3334 and we'll size it for you, no upsell.
About
Why Choose the Kinetico Sumo HT?
Ideal for small to medium homes in hard water areas, the Kinetico Sumo HT delivers soft water on demand without using a drop of electricity, protecting your appliances while keeping running costs down.
Runs Without Electricity
Powered by water pressure alone, so there's no socket to find, nothing on your energy bill and fewer electrical parts to go wrong.
Low Salt and Water Use
Regenerates in just 12 minutes using only 270g of salt and 20 litres of water, keeping running costs and environmental impact low.
Fully Automatic
No timers or controls to set. It measures the water you use and regenerates only when needed, then gets on with it.
Compact Design
At (H) 495mm x (W) 230mm x (D) 470mm, it slots neatly under most kitchen sinks, ideal for homes short on space.
Strong Flow Rate
Supports 30 to 40 litres per minute, keeping water pressure consistent for small to medium households.
5 Year Warranty
Backed by a 5 year warranty and Kinetico's reputation for reliable, long-lasting non-electric softeners.
Common questions before you buy
Everything people usually ask before fitting a water softener. Still unsure? Call 0116 276 3334.
How does a non-electric softener work without power?
The Sumo HT runs on the pressure of the water flowing through it, using kinetic energy rather than electricity. There's nothing to plug in, no socket needed nearby, and nothing drawing power in the background. Fewer electrical parts also means fewer things that can fail.
Will it fit under my kitchen sink?
At 495mm high, 230mm wide and 470mm deep it's one of the more compact softeners available and fits most standard sink cupboards. Measure your cupboard first, and if space is tight send us the dimensions and we'll confirm before you order.
What salt does it use, and how much?
It uses block salt, which is clean and easy to handle, and it's very economical: just 270g per regeneration. You can add block salt to your order. Most households top up every few weeks depending on water use.
Is it powerful enough for my home?
The Sumo HT supports a 30 to 40 L/min flow rate, which suits small to medium households comfortably. For larger homes with several bathrooms running at once, call us on 0116 276 3334 and we'll check it's the right fit or suggest a higher-capacity unit.
Does it work with my water pressure?
It operates across a wide 1 to 8 bar pressure range, which covers the vast majority of UK mains supplies. If you're on a private supply or know your pressure is unusually low, let us know and we'll confirm.
Can I fit it myself?
Many customers do, as it connects to standard plumbing and needs no electrical work, which is one of the advantages of going non-electric. If you'd prefer, add a 15mm or 22mm fitting kit to your order, or we can point you to a local plumber.