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So far Claudia Schwarzer has created 44 blog entries.

September 2020

250 biopools in 25 years


We celebrate 25 years of biological swimming pools. In the last few years we have acted with more creativity than ever. We invented new concepts and designed really extraordinary projects across the country and some beyond. Above all, the tourism sector allows to dream big. We designed a biological swimming pool for tourist use [...]

250 biopools in 25 years2020-08-30T17:40:30+01:00

August 2020

Holiday at home … with biological pool!


Since there is a place that allows you to cool off, holiday at home don't seem like such a bad option. You avoid hours in the car, slow traffic, crowded beaches, long lines and, finally, the crowd of others. Without a doubt, it is a more ecological and sustainable variant to spend your vacation [...]

Holiday at home … with biological pool!2020-07-31T17:07:18+01:00

July 2020



Those who do not prefer to stay in the shade, will need sunscreens during summer sunbathing. Unfortunately, some of these non-mineral sunscreen products are not healthy for human health or the environment. Among the ingredients of these chemicals are so-called oxybenzones, one of the most commonly used chemicals in sunscreens. About 60% of non-mineral [...]


May 2020

Seal “Clean & Safe”


In times of the new coronavirus many of the tourist resorts with biological pools are concerned with how to reopen after this crisis. We recommend asking for the “Clean & Safe Establishment” seal for tourism companies, since there are already first destinations with biological pools that just received this distinction now in April. Companies [...]

Seal “Clean & Safe”2020-04-30T16:02:24+01:00

April 2020

Partition walls


In these days the newspapers showed photographs of the famous canals of Venice, but this time with crystal clear water with schools of fish clearly visible. It seems that the absence of traffic with motor boats, which permanently lift up sediments, made the water more transparent. That is, so much movement with boats keeps [...]

Partition walls2020-04-01T10:00:42+01:00

February 2020

Springtime, time for cleaning


The first three months of the year are the most indicated time when basic cleaning of each biological pool must be done. After months of disuse, deposits, such as dust and leaves, naturally accumulate on the bottom of the swimming area. These must be removed before starting into the new swimming season. In biological [...]

Springtime, time for cleaning2020-02-02T10:47:24+00:00

December 2019

Cradle of amphibians


In the rainy season the biological pool becomes attractive to even more living beings. Much lower temperatures of this season and rain water falling from the sky encourage the willingness of salamanders and newts to initiate migrations in search of suitable places to meet for mating. Thus, on rainy nights the biological pool becomes [...]

Cradle of amphibians2019-11-28T10:52:44+00:00

November 2019

Pruning water lilies


In autumn some of our customers are concerned with the water lilies. The same plants that enchant us with their splendid beauty during the summer no longer show many leaves, no flowers but many yellow leaves. At this time of year the plants are preparing to hibernate, huddling at the bottom of the lake [...]

Pruning water lilies2019-10-23T14:43:43+01:00

October 2019

Renovation of swimming ponds


For more than two decades there have been biological pools in Portugal. Not surprisingly, some of the older ones deserve a new face or any kind of rejuvenation. Even if the biological treatment system works well, there may be reasons for rigorous pruning of plants, creating a new entrance or different access, a waterfront [...]

Renovation of swimming ponds2019-09-29T13:12:26+01:00

August 2019

Eco house with biological pool


As part of the course in civil construction at Gustave Eiffel Professional School in Lisbon, this model of an eco-house was born. The author of the work, Tomás Couto, is a student of this professional school and focused on his work to show the most sustainable and ecological practices. Because "thinking green is thinking [...]

Eco house with biological pool2019-08-01T11:08:00+01:00
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