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Eco-friendly European natural swimming pools from BioTop – free of chemicals, low running costs

Concept

1. The curved sieve skimmer automatically keeps the water surface clear of leaves and floating impurities.

2. The Biotop plant filter ensures clear water.

3. The Biotop Carbonator reduces pH-level, keeping algae growth to a minimum.

4. The submerged pump house operates all the technical equipment with one pump, including extra water features such as streams, springs and waterfalls.

5. Submerged wall to separate swimming area from plant zone.

6. Deck right at waters edge to enjoy the sun and dive into the water.

The Curved Sieve Skimmer

The curved sieve skimmer is a milestone in skimmer development. The water flows over a curved sieve. The mesh size of the sieve is only 0.3 mm. The advantage of this is that even slight impurities
and mucilaginous algae get caught in the sieve. The impurities are removed from the system before the nutrients they contain get back into the water.

The sieve is self-cleaning, as the impurities are rinsed to the bottom. Due to a cleverly-devised mechanism, the water flow is regulated via a moveable skimmer flap that always allows exactly the right amount of water to flow over the sieve.

The BIOTOP Plant Filer

The Biotop Plant Filter provides clear conditions naturally. The water streams slowly down through the planted floor of the filter bed which cleanses the water as it is filtered through:

Turbidities are filtered out of the water. The vital plankton is not destroyed in this process.
On the surface of the filter grains a biofilm develops which reduces organic impurities.
Bacteria and germs are eliminated from the water.
The roots of the plants permanently keep the filter substrate permeable.
The filter substrate does not have to be changed, as the nutrients that are freed are ingested by the plants

The result is clear, hygienically clean water. The Biotop Plant Filter can be incorporated into the water cycle so that no additional pumps are necessary.
The Plant Filter is integrated into the regeneration zone, eliminating the need for further surface space, as in two and three-chamber systems.

The BIOTOP Carbonator

The Biotop Carbonator, patented by Biotop, fights rampantly growing algae, naturally and gently: Pipes are laid in the ground outside the pool which suck up air from the ground. This air - naturally filtered through the ground - has a different chemical composition than atmospheric air. During the day when the pH-value of the water rises, the air is sucked through an air pump and pumped into the carbonator, which is located in the pool. The air streams through granulated rock, which binds nutrients such as phosphate, and is then distributed in the pool through aeration hoses or injector jets. The results are astounding. Several effects are achieved simultaneously: The pH-value of the water sinks. The living conditions deteriorate for algae, yet improve for plants. Nutrients are bound and oxygen is introduced into the water. Algae growth is permanently reduced. Natural balance returns to the pool.

The Submerged Pump House

Biotop offers a pump house with a completely new concept. The pump is not placed in a “dry” enclosure; a submersible pump is installed in a flooded pump house. The pump does not “suck in” the water but flows into the pump house without pressure. The submersible pump lies on the floor of the pump house and transports the water into the natural pool through pressure lines.

The new concept provides a number of advantages:

1 Submersible pumps are considerably quieter than dry pumps.
2 The motor is cooled more efficiently by the surrounding water than by air.
3 Submersible pumps need less energy and this not only saves electricity – our contribution to environmental protection.

Any concern that there is danger of getting electrocuted while swimming is unfounded, because the pump is safely positioned in the pump house and is separated from the swimming area, and with any disturbances the fuse shuts off the system. Naturally the new pump house is complies with all regulations.

The Submerged Barrier Wall

Concrete Walls separate the swimming area
and the planting zone.

The top of the wall is below the surface and can be used to sit on and enjoy the nearby planting.

The top of the wall can be covered with timber or stones.

Vertical walls from top to bottom in the swimming area provide a clear separation to the planting zone.

Decking

Enjoy a relaxed time next to paradise!