Wellis Rio Grande W-Flow, manufacturer product image 2

Wellis Rio Grande W-Flow, manufacturer product image 3

Manufacturer product image

Rio Grande W-Flow — swim spa

Wellis

Short answer: Rio Grande W-Flow is a swim spa made by Wellis in Hungary. Sauna Dekor supplies and installs it in the villas and hotels we build; the product and its certificates are the manufacturer's.

A six-metre shell: a swimming section at one end, six-person hydromassage at the other. W-Flow counter-current at 0.4–2.5 km/h.

Capacity: 6 seats
Jets: 41 jets
Seating layout: Swim section + 1 lounger + 5 seats
Dimensions: 600 × 235 × 147 cm
Water volume: 6.600 L
Weight: 1.300 kg

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Model note

What the Rio Grande W-Flow is

A six-metre body: 600 × 235 × 147 cm. A swim section at one end and six-person hydromassage at the other — one lounger and five seats. The W-Flow counter-current system gives six steps between 0.4 and 2.5 km/h, so both a walking pace and a training pace are set up in the same body. 41 jets, five pumps and two 3 kW heaters. Water volume is 6,600 litres and the empty shell weighs 1,300 kg; a reinforced concrete platform is obligatory for a load approaching eight tonnes when filled. Supply is 1 × 25 A 230 V or 3 × 16 A 400 V.

Technical specifications

Rio Grande W-Flow specifications

Capacity	6 seats
Jets	41 jets
Seating layout	Swim section + 1 lounger + 5 seats
Dimensions	600 × 235 × 147 cm
Water volume	6.600 L
Weight	1.300 kg
Massage pump	5 pumps
Heater	2 × 3 kW
Power supply	1 × 25A 230V · 3 × 16A 400V
Product code	WU00025
Shell colours	Sterling Silver / Grey, Ice White / Grey, Sterling Silver/ Brown
Sound system	Aquasoul™ Pro 4.1 circle flat sound system
Insulation	LIFE Scandinavian insulation system
Water filtration	3 pcs Superfine filter cartridge, Crystal Clean System, WellisGuard™ system
Water circulation	Energy-saving W-EC circulation pump
Side cladding	HorizontSide™ or semi-inground UV-proof wood textured plastic
Control panel	2 x SmartTouch
Reinforcement	Fiberglass reinforcement
Lighting	2 x 16 LED lights
Options and extras	SmartSalt System™ (optional), Aroma system, Heat exchange preparation, Smartphone™ app with WiFi, Swim tether
Frame	Stainless steel
Waterfall and fountain jets	1 pc lighting waterfall in spa, 3 × 3 pcs lighting laminar fountain jets
Connection	WIFI
Manufacturer warranty	Shell structure 10 years · engineering parts 3 years

Values: Wellis's published product information (read 23 October 2026). Dimensions, weights and supply figures not listed here are sent with the manufacturer's technical sheet.

Technology

What is inside the unit

Equipment differs between series; the headings below are Wellis's own systems.

LIFE Scandinavian insulation

Full-fill insulation between the body and the panels. Instead of running continuously, the heater switches on only as much as needed to hold the temperature; in winter the difference shows on the energy bill.

W-EC circulation pump

Energy-saving continuous circulation. The water does not stand still, so the filter and disinfectant work as intended.

WellisGuard water management

A water treatment package that combines the filter cartridge, ozone and UV in one system. It reduces chemical consumption.

SmartTouch control

Touch panel; temperature, filtration times and jet groups from one screen. A weekly programme can be set.

MyMusic 2.0 sound system

Bluetooth speakers built into the unit. No separate cabling or external device needed.

LED colour lighting

The underwater and rim lighting changes colour. In the evening, this is what sets the atmosphere.

Poli-Max shell reinforcement

Polyurethane reinforcement behind the acrylic shell. The shell carries the load and does not sag over time.

Smart-In Step

A 3 kW heat pump fits under the step. Running costs fall without taking up extra space.

Installation

Before installation

A hot tub is not just an appliance; it is a load on the structure. All four points are discussed at the site survey.

Structural load

A filled hot tub, with water and bathers, weighs three times its own weight. For large units such as the Olympus Life on a terrace or roof, a structural calculation is carried out; if the slab is not reinforced concrete, strengthening is needed. This check is done BEFORE installation.

Electrical

Plug & Play models run from a 230 V socket. All others need their own circuit, their own breaker and a residual current device; for models rated 32 A and above, a 400 V three-phase supply is recommended. The distance to the distribution board is asked at quotation stage.

Water and drainage

The fill line and drain point are planned close to the unit. In a built-in installation, at least one long side is left as a service hatch; otherwise the surrounding cladding has to be removed at the first fault.

Positioning

Large units are lowered by crane. The access route, door widths and manoeuvring space are measured at the site survey — this is the most common problem on site.

Features listed by the manufacturer

LIFE Scandinavian insulation
W-EC circulation pump
WellisGuard water management
SmartTouch control unit
MyMusic 2.0 sound system
LED chromotherapy
Poli-Max shell reinforcement
Smart-In Step

Close alternatives: the Amazonas W-Flow Grand Prix, the Amazonas W-Flow, the Amazonas Riverjet Life.

Frequently asked questions

Who manufactures the Rio Grande W-Flow?

Wellis, in Hungary. Sauna Dekor supplies and installs it; the product warranty and certificates are the manufacturer's.

Does Sauna Dekor install the Rio Grande W-Flow?

Yes. We supply and install the Rio Grande W-Flow as part of the villas and hotels we design, manufacture and build, in the UAE, Saudi Arabia, Qatar and other markets.

What are the main specifications of the Rio Grande W-Flow?

Capacity: 6 seats; Jets: 41 jets; Seating layout: Swim section + 1 lounger + 5 seats; Dimensions: 600 × 235 × 147 cm. Values are from the manufacturer's published product information.

Sources