• ThermoPP – Complete tub with the latest technology without carcinogenic PVC liner

    The ThermoPP pool is made of PP instead of liner. PP is a material that withstands higher temperatures, while you also do not need to worry about children’s toys damaging the liner.

    The type of polypropylene used in our pools comes from the German company Röchling and is specially developed for pool manufacturing with UV-stable PP. The fact that the plastic is UV-stable means that the only thing that happens to the material over time is that it develops a more matte surface instead.

    The material is available in several colours, and it makes it possible to manufacture special seating benches, different types of stairs, overflow systems, and only the imagination sets the limits.

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Zero Weld Technology – a stronger, more elegant, and safer PP pool

  • When you invest in a pool, you want something that will last for many years, look great, and feel safe every time you use it. With Zero Weld Technology, that is exactly what you get – a modern construction that removes one of the biggest weaknesses of traditional pools: visible and vulnerable welded joints.

    In standard PP pools, the transition between the floor and walls, as well as between the walls themselves, is often welded. It is precisely in these joints that problems can easily arise over time – cracks, wear, or in the worst case, leaks. With Zero Weld Technology, these weak points are eliminated entirely. The result is a pool that is both stronger and more durable.

    A stronger construction from the ground up

    By removing the welded joints in the most exposed areas, the pool gains a more uniform and stable construction. Instead of stress being concentrated in the joints, it is distributed evenly across the entire pool structure. This allows the pool to better withstand stresses such as ground pressure, water volume, and temperature changes.

    This also means that the risk of cracking is greatly reduced. Instead of something suddenly breaking, the material is designed to handle stress in a more controlled way. This provides a safer solution for you as a pool owner.

    See our range of ThermoPP pools 
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    Premium PP Pool / ThermoPP with Zero Weld Technology 

Zero Weld Technology – a stronger, sleeker and safer PP pool

  • Withstands tough conditions

    A pool is exposed to a lot - not just water, but also cold, heat, and movement in the ground. Pools with Zero Weld Technology are developed to withstand exactly that.

    They have been tested in extreme temperatures, where the water was even allowed to freeze completely, without the pool being damaged. This means you can feel confident even during cold winters.

    In addition, the construction has been tested for impacts and transport, showing that it withstands severe stress without losing its function or shape. This is clear proof that the quality lasts - not just in theory, but in reality.

    More stylish finish - no visible seams

    In addition to the strength, there is another major advantage: the design.

    Without welded joints, you get a completely smooth and stylish interior. No visible lines, no unevenness - just clean surfaces that create an exclusive impression. This makes the pool look more premium and feel more carefully crafted.

    Cleaning also becomes easier, since dirt and algae do not stick as easily when there are no seams and edges.

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  • Long-term peace of mind

    Choosing a pool with Zero Weld Technology is not just about how it looks today – it is about how it performs in 5, 10, or 15 years.

    By removing the most vulnerable points, the risk of future problems is reduced. That means less maintenance, fewer worries, and an investment that stands the test of time.

    Why you should choose Zero Weld Technology

    • No weak welded joints in critical areas
    • Stronger and more durable construction
    • Withstands cold, frost, and tough conditions
    • Stylish, smooth, and exclusive design
    • Lower risk of cracks and leaks
    • Long service life and a secure investment

  • ThermoPP pool as a complete tub – quick installation

    The ThermoPP pool is delivered as a single shell, and installation is quick and easy. When the pool is to be installed, a hole is dug where the pool will stand, after which geotextile fabric, drainage, and a base layer are put in place, and a slab is poured. After this, bottom insulation is laid together with the pool. As soon as the pool has been lowered into the hole, you can connect it, remove the protective film, and start filling the walls with reinforcement and flowing concrete. After about a week, you can begin filling the inside with water and backfilling around it with the soil that was excavated.

    A normal installation time for a ThermoPP Pool is about one week from when the excavator started digging the hole.

  • Withstands temperatures above 33 degrees

    You want to enjoy a pool, not feel cold when swimming, which is why many of our customers want a pool temperature of 28 or even 30 degrees. This is no problem with a ThermoPP Pool, as the material can withstand temperatures even above 33 degrees.
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In our online store, you can configure your pool packages!

Go to the configurator

  • Concrete Pool – A Stable Construction

    The ThermoPP Pool is backfilled with liquid concrete along the sides, just like a regular thermopool. This makes the pool a concrete pool, which is the most stable option you can get and lasts longer than any other type of pool without rusting or rotting.

    The combination of a PP pool and a thermopool gives you the best of both worlds. You get a concrete pool with all the advantages of a PP pool, such as long durability, no risk of rot, and the ability to withstand higher temperatures.

  • Insulates better than other pool constructions

    The polypropylene material is an insulating plastic, and in addition there are 25 cm thermoblocks on the outside, making it impossible to insulate the pool any better. By insulating both the sides and the bottom, we have created maximum insulation for the pool. Only 6% of the heat escapes through the pool’s walls and bottom, which means the insulation of the ThermoPP Pool is virtually complete. However, 94% of the heat (which rises upward) must be protected, and for that a pool enclosure or slatted cover of the most suitable type is recommended.

The staircase is built into the pool

  • The staircase is an important part of the pool’s construction. Until 2011, the staircases were sub-supported, meaning that cement was filled underneath the staircase. This outdated construction has been problematic both during installation and in the event of ground settlement and movement. Over the years, most manufacturers have instead chosen to replace it with a water-filled staircase. The pool itself is manufactured as a single water barrier, and the staircase is then built into the pool. This means there is no risk of the pool leaking if settlement were to occur in the staircase section. Under the staircase, there is water circulation directly from the sand filter, which is purified, and since algae do not form in darkness, there is no need to worry about the water quality beneath the staircase. At the bottom of the staircase, there are inlets through which the water then circulates out into the pool.

    Our staircases are made from semi-protected “cubic grain” material with no edges and are a true masterpiece! Choose between a straight or rounded corner staircase with bench seating, a floating staircase, or a full-width end staircase. The staircase construction is very stable and does not flex thanks to skilled engineering calculations.

    Se our range of ThermoPP pools 
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  • Made from 8 mm thick UV-stable PP thermoplastic from Roechling

    Made from 8 mm thick UV-stable PP thermoplastic from Roechling

How do you build a ThermoPP pool?

    1. A hole is dug and drainage is installed, and a slab is cast.

    On the slab, you can either have a 10 x 10 cm groove running along where the pool wall will go, or alternatively you can also have reinforcing bars drilled down into the slab according to the options below:

    • Cast slab with grooves

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    • Cast slab with vertical reinforcement

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    2. Laying insulation on the slab

    • Lay out the insulation upon the pool's arrival

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    • If necessary, tape the insulation in place

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    3. Lifts into the pool

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    • 4. Assemble the ground cloth (the skirt) on the side and position the pool

    • 5. Fill with water to about 10 cm (to prevent the pool from moving)

    • 6. Reinforce the walls with timber battens on the inside

    • 7. Fill around the sides of the pool with draining material; alternatively, you can backfill with the soil you have excavated, but then you must install a Platon mat on the sides of the pool

    • 8. Insert vertical reinforcing bars in the pool walls. If part of the pool is above ground, you should also install horizontal ones (which are pushed in from the sides)

    • 9. Fill the sides with concrete and let it cure for approx. 10 days

    • 10. Fill the pool with water
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    ThermoPP Pool versus liner pool or glasfiberpool

    • Sweden’s best-selling pools are lined with PVC liner fabric, even though the Swedish Society for Nature Conservation writes the following about PVC fabric:

      Polyvinyl chloride (PVC; vinyl)
      PVC, or vinyl as the liner is also called, is made from vinyl chloride, which is carcinogenic and therefore meets our criteria for hazardous chemicals.

      The plastic contains flame-retardant properties due to its high chlorine content, and it can be tailored with additives to achieve the desired material strength, flexibility, transparency, or colour. The fact that PVC can be made with so many properties means that it has a wide range of uses, for example windows/window frames, cable sheathing, floor mats, electrical outlets, sealing strips in refrigerator doors, packaging and plastic films for food, blood bags, dialysis tubing, toys, bags and shoes, components in the automotive industry, and more. PVC is also found in rainwear, shower curtains, wipe-clean tablecloths (“oilcloths”), inflatable mattresses, swimming pools and bath toys, as synthetic leather on furniture and covers for cushions and mattresses. In terms of production volume, PVC is one of the five most important types of plastic in Europe.

      PVC often contains plasticisers, many of which phthalates have been prohibited from use in the manufacture of this plastic within the EU since the beginning of 2015 due to their inherently hazardous properties. Therefore, we advise against the use of old PVC as well as PVC imported from outside the EU, as these products do not follow the same legislation as newly manufactured goods produced within the EU.

    • PVC is a hard plastic, and to make the liner soft, plasticisers are added. This is how the Swedish Society for Nature Conservation describes the plasticiser in PVC liners:

      Plasticisers Plasticisers make hard plastic soft and flexible. Most plasticisers are not bound to the polymer and therefore gradually leach out of the material over time. The greatest use of plasticisers is in PVC plastic. Many of these plasticisers are carcinogenic, endocrine-disrupting, toxic to reproduction and/or harmful to aquatic organisms. Various phthalates are well-known examples of problematic plasticisers. Four phthalates (DEHP, DIBP, DBP and BBP) are included on the authorisation list, which means that companies need authorisation to use them. However, this only applies to companies within the EU.

      Most liner manufacturers do not provide warranties for their products above 28 degrees, as the plasticiser is released from the PVC and then ends up in the pool water.
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