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The Ultimate Home Wellness Experience with Wellis Swim Spas

Transform Your Garden into a Year-Round Fitness & Relaxation Retreat

Why choose between a swimming pool and a hot tub when you can have the best of both? Wellis Swim Spas represent the pinnacle of European engineering, designed to provide a professional-grade swimming environment and world-class hydrotherapy in one compact, stylish unit.

Whether you are training for a triathlon or seeking a sanctuary to unwind after a long day, Wellis offers a versatile solution that fits perfectly into the modern UK garden.

Always in season

Year-round use

Budget friendly

Low running & maintenance costs

Compact size

Perfect for UK gardens

Affordable

Finance options available

Dive in before you decide...

Choosing a swim spa is a big investment in your wellbeing, and we believe the best way to choose is to get your hair wet. Whether you want to test the power of the W-Flow current or feel the precision of our hydrotherapy jets, our “Wet Test” sessions give you exclusive access to our models in a private, relaxed environment.

Prefer to stay dry? Book a Live Virtual Tour or an in-person showroom walk-through. Our friendly wellness experts will guide you through the range, helping you envision exactly how a Wellis spa will transform your garden.

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Why choose a Wellis Swim Spa?

For wellness and recovery

The River Range offers a complete wellness solution in one convenient package. Combine your daily workout with the therapeutic benefits of hydrotherapy, all without leaving your home.

For family time

The River Range is perfect for families, offering a fun and engaging way to stay active together. Kids will love playing in the swim lane, while adults can enjoy a challenging workout or a relaxing soak.

For garden and property value

Create a stunning feature for your garden design which becomes a usable outdoor space all year round.

For fitness and training

Customise your workout with an adjustable swim current, ranging from gentle resistance for leisurely swims to a powerful flow for intense training. Challenge yourself and track your progress with a swim current tailored to your fitness level.

Wellis Swimming Spa Products

Beach Club Deluxe - Swimming Pool
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Original price was: £24,089.Current price is: £18,789.

Rio Grande W-Flow – Premium Swim Spa
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Original price was: £47,602.50.Current price is: £37,129.

Amazonas W-Flow – Premium Swim Spa
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Original price was: £36,546.Current price is: £28,505.

Amazonas Grand Prix Premium Swim Spa
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Original price was: £40,838.Current price is: £31,853.

Danube Riverjet – Premium Swim Spa
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Original price was: £30,689.Current price is: £23,937.

Danube W-Flow – Premium Swim Spa
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Original price was: £32,999.Current price is: £25,739.

Frequently asked questions

Expect to pay between £2.50 and £4.00 per day on average.

While manufacturers often quote “optimal” conditions, the reality of the UK climate means the heater works hard.

The Heat Pump Factor: If you want to keep costs at the lower end, an external Air Source Heat Pump (ASHP) is no longer optional—it is essential. A Wellis unit paired with a 5kW or 7kW heat pump can reduce your heating bill by roughly 70%.

The “Idle” Cost: Even when you aren’t using it, you are paying to keep 6,000+ litres of water at temperature. If you turn the heat down and try to “boost” it for a swim, you will actually spend more energy than if you maintained a steady heat.

Yes, but only if you are prepared for the winter electricity bill and the “dash” to the house in very cold weather!

Heating Performance: A quality swim spa (like those using Wellis Scandinavian insulation) will stay at 30°C even in a blizzard. However, your evaporation rate triples in winter when the cover is off.

The “Dual-Zone” Reality: If you buy a “single zone” (one tank), you have to choose: 28°C for serious swimming (which feels cold when sitting still) or 38°C for relaxing (which causes heat stroke if you try to swim). For true year-round versatility, a Dual-Zone model like the Rio Grande is the only honest recommendation.

The most important installation requirements are the base or ‘ground-works’, the electrics; and the delivery.

The BaseA swim spa is a substantial and heavy item when filled, so a solid, level foundation is crucial for structural integrity and safe operation. Depending on the type of swim spa you purchase and your desired aesthetic, there are three main base preparation options: Ground level, semi-sunk and fully sunk. These groundworks must be completed by the customer before the swim spa can be delivered and commissioned.

The ElectricsMost swim spas require a 32A or 40A supply  it is essential that the necessary electrical connections are prepared and completed by a qualified electrician prior to delivery. 

The DeliveryIn 90% of UK residential installs, you will need a crane; this is usually due to access restrictions at your home. A standard “Hiab” on the delivery truck usually won’t have the reach for a 6-metre swim spa.

Johnsons Wellness provide a fully managed installation service, contact us if you would like to discuss the options.

Yes, but some customers say It feels like a “treadmill,” not a “track.”

The Current: Jet-based systems (standard on many entry-to-mid-range models) produce a “bubbly” and somewhat turbulent flow. It can be difficult to stay in the “sweet spot.”

Turbine Technology: If you are a competitive swimmer, “jets” will likely frustrate you. You would need to look at Turbine systems (like the Wellis W Flow System), which move a massive volume of water smoothly, rather than high-pressure air and water.

The Width and Length: Direct advice for visitors: always check the internal width and length. If it’s too narrow, your hands will hit the sides during a butterfly or wide breaststroke; if it’s too short, then taller swimmers may struggle to keep pace.

It takes about 20 minutes a week, but if you ignore it for 14 days, it takes 5 hours to fix.

  • Water Chemistry: Because there is more water than a hot tub, the chemistry is more stable, but you still need to test it 2–3 times a week.

  • Filtration: You must wash the filters weekly. If they clog, the heater shuts down to protect itself (the “Dry Fire” error), and in winter, this can lead to frozen pipes.

  • Drainage: You only need to drain a swim spa once or twice a year, but be aware: 8,000 litres of water takes a long time to drain and a long time to reheat (usually 24–48 hours).

Wellis has streamlined this with their “Wellis Crystal” and OZMIX™ systems; with most models equipt with a UV-C or Ozone system as standard (which reduces the reliance on chlorine/bromine by up to 50%) and App Control that allows owners to manage filtration cycles and temperature remotely.

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Johnsons Wellness: The UK’s Premier Destination for Wellis® Excellence

We handle every aspect of your journey, from the showroom to your first soak. Our dedicated UK team provides 

  • White-Glove Delivery: Safe, precision transit to your property.
  • Professional Installation: Full setup and commissioning by experienced engineers.
  • Expert Maintenance: Tailored service plans to keep your water crystal clear.
  • Local Support: A UK-based customer care team and showrooms across the country; ready to assist whenever you need us.

Ready to Find Your Perfect Wellis Swim Spa?