Questions and answers about your spa from Softub. Water care, installation, instructions for use, assembly instructions, problems Softub
Product understanding & differences
In German-speaking countries, the term “whirlpool” is often used incorrectly. Originally, “Whirlpool” is a brand name owned by Bauknecht, which sells household appliances such as washing machines and refrigerators. However, the term has become colloquially established for bubbling bathtubs—even though there is no Whirlpool brand for whirlpool baths.
Technically speaking, such products are referred to as outdoor whirlpools, Jacuzzis*, or hydrotherapy baths. Softub is a unique system in this category—mobile, energy-efficient, and designed for year-round use.
*”Jacuzzi®” is a brand name for whirlpools. Softub is an independent brand with its own technology.
“Jacuzzi” was originally a brand name—named after the US company of the same name, which developed the first whirlpool bathtubs with a pump system in the 1950s.
In German-speaking countries, “Jacuzzi” is often used today as a synonym for whirlpools or hot tubs, even though it is a specific brand name.
Softub is not part of the Jacuzzi brand, but is an independent whirlpool system with its own technology, design philosophy, and advantages—such as mobility, energy efficiency, and year-round usability.
Softub is lightweight, portable, and particularly energy-efficient. Unlike conventional hot tubs, it does not require permanent installation, heating, or much maintenance. Thanks to its flexible material, it adapts to any environment—whether in the garden, on the patio, or indoors.
No. The tub consists of 25 (5 mm thick) layers of polypropylene foam that are heat-welded together. Softub whirlpools are handmade in a factory on the east coast south of Boston. The material comes from the aviation industry, where it is also used as insulation for aircraft.
The bottom of the tub is as soft as the tub itself. You sit comfortably, as if on a sofa, completely motionless. Thanks to the natural buoyancy of the water, the Softub experience makes you feel almost weightless—your body experiences up to 95% relief.
The Resort and Poseidon X models also feature an integrated therapy bench. It offers a raised seating position – ideal for higher water levels and for targeted relaxation, e.g., in the back area.
Yes. Softub offers four models: Sportster (1–2 people), Legend (2–4 people), Resort (4–6 people), and Poseidon X (4–6 people). The Poseidon X is our newest model with advanced features such as light therapy, a therapy bench, and an innovative jet system.
Installation & Location
The surface on which the Softub will stand should be level and not tilt. The Softub adapts to all surfaces: meadow, stone floor or wooden decking on the terrace. A fused 240V power connection and a nearby water connection are all you need for a great bubble experience.
Yes, provided that the balcony has sufficient load-bearing capacity. A filled Softub weighs up to 1000 kg, depending on the model. We recommend checking the structural integrity with a specialist in advance. Yes, provided that the balcony has sufficient load-bearing capacity. A filled Softub weighs up to 1000 kg, depending on the model. We recommend checking the structural integrity with a specialist in advance.
Yes, provided that the balcony has sufficient load-bearing capacity. Depending on the model, a filled Softub weighs up to 1000 kg. We recommend checking the structural integrity with a specialist in advance. Softub hot tubs are the lightest hot tubs in the world with a fixed tub. The minimum load is 200 kg/m2.
You do not need a permanent connection. A garden hose is sufficient. It is important to smooth out and remove any creases at the bottom when filling, as otherwise consequential damage may occur.
In winter, we recommend smoothing out the creases at the bottom with warm water.
The Softub tub is a closed system – without any drain. This prevents potential leaks and guarantees continuous insulation. To empty the tub, we recommend using a standard water pump, such as the Kärcher SP1 submersible pump from our online shop. Filling is easy with a garden hose.
Easy to transport, super simple to install—you can create your new wellness and relaxation oasis in no time.
Softub installation instructions
Yes, the Softub can also be used indoors—for example, in a conservatory, wellness room, or basement. It is important that the room is well ventilated, as water vapor is produced when bathing. The floor should be water-resistant and load-bearing, and a power connection must be available. Please note that water may leak out when filling and emptying the tub – a suitable drain or pump is recommended.
Usage & Target Group
Yes, the Softub is also suitable for children. Thanks to its low entry height and soft, non-slip material, there is virtually no risk of injury. The open pool shape without fixed seating or lying surfaces offers children plenty of freedom of movement.
Important: Children should always be supervised when bathing, as this is a heated water pool.
Yes, the Softub is particularly senior-friendly. The low entry height, ergonomic shape, and non-slip surface make it easy to get in and out. The pleasant water temperature and gentle massage effect of the jets also promote relaxation and well-being—even for those with limited mobility.
Yes, after consultation with your doctor. The bathing temperature should not exceed 36°C. If possible, the legs should be raised in the pool. Air supply should be carefully monitored.
Bubble away just like in summer. The Softub can be used all year round. Thanks to intelligent heating technology, the water stays pleasantly warm even at sub-zero temperatures. Important: In frosty conditions, the Softub should remain in continuous operation to prevent it from freezing.
The perfect tub insulation means that heat loss is minimal. If you want to move the pool closer to the house, e.g. to the garden seating area, this is no problem thanks to its lightweight design.
WARNING: If the pool remains unused during a season, the motor must be stored in the basement during winter, as the residual water in the pipes could freeze.
Technology & Energy
Depending on the model, the Softub has between 4 and 11 massage jets. Our premium model, Poseidon X, offers 11 jets, including a powerful Poseidon Power jet and an X-shaped jet system with five individually selectable bubble options.
The X-jet system is an innovative massage system in the Softub Poseidon X. It consists of five strategically placed jets arranged in an X shape, offering a variety of bubble patterns – from gently relaxing to powerfully stimulating. Combined with the Poseidon power jet, it creates a versatile hydrotherapy experience for two people at the same time. The jets can be individually adjusted, offering maximum flexibility for your personal wellness needs.
Continue bubbling away like in the summer. The tub is perfectly insulated, which means heat loss is low. If you want to move the tub closer to the house, for example to the garden sitting area, this is not a problem given how light it is. PLEASE NOTE: If the tub is not being used for a longer period of time, the engine should be stored in the basement during winter, as the residual water in the pipes could freeze.
If the water is cared for according to Softub’s recommendations and the water is changed quarterly, the financial outlay for a daily spa in your own private oasis, including electricity consumption, is between CHF 1.50 and CHF 2.00 per day.
A Softub requires about 100 kWh of energy per month: starting power of 1.4 kW and running power of 800 W during operation. This applies when it runs at 38.0° C and is used daily. In general, energy costs are very low, between CHF 15 and 25 per month.
Softub already meets the most stringent energy regulations and standards of the future and is far superior to its competitors in terms of ecology and energy efficiency. Softub is also a leading product when it comes to the economic aspects of maintenance, acquisition costs and value retention.
The Softub is particularly quiet in operation. With a noise level of approx. 30 dB, it is comparable to a quiet refrigerator. This makes it ideal for use on terraces, in gardens, or indoors—even in quiet residential areas. The pump only runs during filtration or when bubbling, so your relaxation remains undisturbed at all times.
How loud is the carbonation function when in operation?
The carbonation function produces an audible but pleasant bubbling sound – comparable to a small fountain. It can be activated or deactivated manually at any time.
Yes, the Softub can also be operated at night – without disturbing your sleep. The noise level is only approx. 30 dB, comparable to a quiet refrigerator. In addition, filter operation can be individually controlled via the 12/24-hour mode:
– In 12-hour mode, the filter pump only runs during the day, e.g., from 8 a.m. to 8 p.m.
– In 24-hour mode, the Softub filters around the clock.
This allows you to optimally adapt the operation to your living situation – especially in noise-sensitive environments or in close-knit neighborhoods.
The heating time depends on the outside temperature, the model, and the amount of water.
– In summer, it takes around 24 to 36 hours to heat cold water to approx. 38°C for the first time.
– In winter, it can take up to 48 hours or longer, depending on the ambient temperature, as the water cools down more quickly and the heating capacity is required to work harder.
The Softub uses an energy-efficient heating system that utilizes the waste heat from the motor to heat the water. Once the target temperature has been reached, the Softub maintains a constant temperature – even at sub-zero temperatures.
The wastewater can be drained into a suitable drain via the garden hose – e.g., into a gully, drainage shaft, or onto a lawn, provided that it does not contain any chemical residues.
Water care & cleaning
Water maintenance is based on three components:
– pH value control: The ideal pH value is between 7.2 and 7.6.
– Disinfection: Chlorine granules or active oxygen are used to keep the water hygienically clean.
– Filter cleaning: The filter should be rinsed weekly and changed monthly.
Regular checks with test strips ensure that the water remains clear and skin-friendly.
For basic maintenance, you will need:
– pH regulator (plus or minus)
– Chlorine granules or active oxygen
– Algae protection (optional)
– Test strips for monitoring
– Filter cleaner
All products are designed for Softub and are available in the online shop. Shop
Many whirlpool manufacturers advise against its use. However, since no metal parts in the Softub come into contact with water, there is no risk of corrosion. As the manufacturer, Softub does not provide any warranty coverage for the use of salt. Adding sea salt can help maintain water quality. However, sodium chloride (chlorine) must be added to disinfect the water. The salts are added directly to the water and the effect lasts for the entire time. The dosage is 1:100, so you will not taste any salt in the water.
Softub carries four types of sea salt
Iodine/selenium: Selenium supports the body’s metabolic processes and protects cells from harmful influences such as stress and premature aging. Selenium is an antioxidant that protects against oxidative stress and prevents skin aging.
Magnesium sulfate: Magnesium ions help relieve skin conditions. The osmotic effect between magnesium brine and skin cells simultaneously purifies and regenerates the skin.
Dead Sea brine bath: Cleopatra wasn’t the only one to bathe in the “white gold” of the Dead Sea. Dead Sea brine baths stimulate circulation and skin metabolism. While bathing, the body absorbs minerals from the brine, strengthening the skin’s natural protective function. Skin problems such as psoriasis, neurodermatitis, acne, and allergies improve significantly. It also works in your bathtub at home!
Selenium/brine bath: Feeling tired, exhausted, unable to concentrate? The thyroid gland is considered the body’s “accelerator.” Its hormones control a significant portion of the metabolism. To do this, it needs sufficient amounts of iodine and selenium, but these are often lacking. An iodine or selenium bath provides relief, strengthens the immune system, and slows down the aging process. Selenium also has an antioxidant effect and protects cells from harmful environmental influences.
The ozone system keeps maintenance to a minimum. The basic requirement for perfect water is the correct pH value of 7.2 to 7.6. For germ-free water, we recommend adding Soft Care liquid together with Soft Care cleaning granules or active oxygen (1-2 times per week). The filter should be rinsed with a hose once a week. In addition, it should be cleaned once a month for at least 1 hour (max. 24 hours) in dissolved Aqua Finesse Filter Cleaner tablets. It is important that when adding the water disinfectant, the Softub lid is removed for 30 minutes and air is added to the water using the bubble function.
Rinse the filter thoroughly with clean water once a week. Once a month, it should be treated with a special filter cleaner or replaced. Replacement filters are available from the Softub shop.
Odors are usually caused by insufficient disinfection or organic residues. Check the pH value, increase the amount of chlorine, and clean the filter. Shock chlorination may be recommended if necessary.
Yes. With proper care, Softub water is gentle on the skin and pleasantly warm. The products used are designed for the small amount of water and do not cause skin irritation—even for sensitive skin.
Material & Care
Use a soft cloth and lukewarm water with a little mild soap. Avoid aggressive cleaning agents, scouring pads, or high-pressure cleaners—they can damage the surface. For stubborn stains, there are special Softub cleaners available in the range of accessories.
Small scratches do not affect functionality and are usually only visible. For more serious damage or leaks, please contact Softub Service—we offer repair kits and professional repairs.
New covers
A curled edge is usually caused by temperature fluctuations or incorrect storage. The material will usually smooth out again during normal operation. If not, carefully warming it with warm water or briefly operating it with the lid closed often helps.
Empty the Softub completely, clean the basin and filter, and allow all parts to dry thoroughly. Store the Softub in a dry, frost-free place—ideally in its original packaging or with a protective cover. The control unit should be stored separately in a dry place.
There are three areas to consider when caring for your Softub:
– Material care: Clean the outer shell and cover regularly with a damp cloth and Power Blue – High Gloss Ultra / UV Protection. Avoid aggressive cleaning agents or scouring pads.
– Water care: Check the pH value and disinfection with Softub-approved products. The filter should be rinsed weekly and changed monthly.
– Inner shell care: For a particularly pleasant bathing experience, we recommend our specially developed Power Blue – Waterline, Tile, and Inner Shell Cleaner.
If not in use for a long period of time, the Softub hot tub should be stored in a dry place and protected from strong UV radiation – e.g., by placing it in a shady location or storing it indoors. An additional cover is not necessary.
A lid that has become heavy is usually caused by chlorine vapors that settle in the insulation core. This happens when the lid is not removed as recommended during chlorination. The vapors condense in the material, which becomes saturated with moisture – the lid becomes heavy and loses its insulating performance.
This problem cannot be repaired. In such cases, we recommend replacing the lid with an original spare part. To ensure a long service life, the lid should always be left open during chlorination and ventilated regularly.
You can reach Softub 24 hours a day via the online shop. During opening hours from Monday to Saturday, you can also order items by phone.
The Softub is robust and weather-resistant – ideal for year-round outdoor use. The outer skin is scratch-resistant and shows no damage from cats or martens in practice.
In rural areas, however, mice or other small animals may try to nest under the Softub or in cavities – especially if it is not used for long periods of time.
To avoid this, we recommend:
– Using or checking the Softub regularly
– Not storing any food sources or cushion remnants nearby
– For prolonged storage: a dry, protected environment and, if necessary, a solid base
Accessories & Extensions
Softub Switzerland offers a wide range of accessories:
– Frames
– Steps and entry aids
– Cup holders and headrests
– Care products (water & skin)
– Replacement filters and cleaning kits
– Light modules and jet upgrades
Yes. We offer various stair models and entry aids for safe and comfortable access – suitable for all Softub sizes and colors.
The lid lifter is also a great help.
Yes. Many components such as filters, control units, and lids are also available for older models. Contact us with your serial number— we will check availability and be happy to advise you.
Delivery & Commissioning
Your Softub will be delivered, installed, and commissioned by our team of experts. Delivery will be made on time as agreed.
We charge a flat rate of CHF 400 for delivery, professional installation, and a personal introduction.
The price does not include additional means of transport such as a crane, permits for journeys, or additional travel costs, depending on the circumstances.
Yes, upon delivery, you will receive a detailed introduction to water maintenance and operation of your Softub hot tub.
Maintenance & service offerings
Yes, with the @Home Premium Service, our experts take care of basic cleaning, water changes, and maintenance of your Softub right in your own home.
The service includes draining the water, cleaning the interior and exterior, cleaning the pipes, seals, and nozzles, refilling, and water maintenance. Optional retraining is also available.
Yes, the @Home Premium Service subscription includes three maintenance appointments per year at a preferential price of CHF 1,188 (instead of CHF 1,455).
The one-time @Home Premium Service costs CHF 485, including travel (Zollikerberg/Dotzigen).
In the event of a technical defect, we offer you various solutions:
You can bring the motor of your Softub hot tub directly to our workshop in Zollikerberg as part of our bring-in service.
Please note the opening hours, which you can find on our website or request by phone.
Alternatively, we can provide you with a replacement motor on request so that you do not have to do without your Softub during the repair period.
Yes, we also clean gazebos and pergolas, including hanging and taking down curtains.