Blog - Water news

Restrictions d’eau potable en PACA : comment savoir si votre réseau est concerné ?
Restrictions d’eau potable en PACA : les informations rapportées, ce qu’il faut vérifier et les bonnes sources à consulter avant de conclure. Read more...
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PFAS and Herbicides: The Role of Coldstream Ceramic Filters in Effective Filtration
When we talk about drinking water quality, terms like PFAS and herbicides come up often. These emerging contaminants stress the importance of choosing the right filtration system. Coldstream ceramic filters,... Read more...
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How to properly maintain your water filter for optimal water quality all year round
A well-maintained water filter is essential to ensuring optimal water quality all year round. Whether you use a Berkey, Monderma or other system, proper maintenance of your water filter is... Read more...
water filter attached on a faucet
The main contaminants in drinking water in Europe: Scientific explanation on the potential of filters
The quality of drinking water remains a crucial issue in Europe, with a diversity of contaminants of concern. This article aims to explore the main contaminants present in drinking water... Read more...
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Analysis for PFAS and pharmaceutical residues in water: Effectively replace and maintain your water filters.
In our quest for healthier drinking water, the analysis and prevention of contaminants such as PFAS, pharmaceutical residues, and other emerging pollutants is of critical importance. To do this, it... Read more...
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Ceramic shell filters vs active filters: Which technology to choose against chlorine and nitrates?
The water we consume daily can contain various contaminants such as chlorine and nitrates. When it comes to choosing an effective water filter, two main technologies stand out: ceramic shell... Read more...
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Protecting your health and that of your family: superiority of gravity filters against emerging contaminants
The quality of the water we consume daily is crucial for our health. Faced with the appearance of new contaminants, it is essential to equip yourself with the best filtration... Read more...
a row of water filtrators sitting next to each other
Virus and bacteria in drinking water: Proven effectiveness of Black Berkey filters by scientific tests
The question of the purity of drinking water is more critical than ever. With the emergence of new pollutants and the persistence of known contaminants, guaranteeing healthy water at home... Read more...
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Endocrine disruptors in water: which filtration solution to choose for safety at home?
In an era where water quality is increasingly compromised by the presence of endocrine disruptors, it becomes crucial to choose the right filtration system to guarantee healthy drinking water. This... Read more...
Close-up of a dirty fuel filter on a vehicle.
NSFANSI Certification: Understanding key standards for water filters
Drinking water quality is a major concern for homes in France, Belgium, Switzerland and across the European Union. NSF/ANSI certifications are a guarantee of safety and effectiveness for water filters.... Read more...
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Buying Guide for Water Filters: Comparison of Berkey and EVA Systems
Water filters are essential for ensuring healthy, contaminant-free drinking water. Among the many systems available on the market, the Berkey and EVA water filtration systems attract particular attention thanks to... Read more...
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Independent test: Performance of activated carbon filters against heavy metals
Heavy metals in drinking water represent a growing concern for many households. The presence of lead, mercury, cadmium and other harmful substances can have devastating long-term health effects. Therefore, an... Read more...
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Effects of Pesticides and Microplastics: The Effectiveness of Ceramic Filters in Water Filtration Systems
Increasing concerns about the quality of drinking water in our homes are leading us to seek effective solutions to eliminate contaminants such as pesticides and microplastics. Among the different filtration... Read more...
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How to choose a gravity water filter for your home: Durability and efficiency of Berkey
Drinking water is a basic need for every home. However, the quality of tap water can sometimes be poor due to various contaminants like PFAS, pesticides, heavy metals, microplastics, and... Read more...
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How to choose a water filter effective against PFAS and heavy metals
Table of contents Table of contents Introduction Understanding Water Contaminants What are PFAS? Metals Heavy Water filter comparison: Which system to choose? Filtration technology Filter autonomy and maintenance Certifications and... Read more...
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Protect your water from contaminants: Comparison of Berkey and EVA filtration systems
Safe drinking water is essential to our health. Faced with various threats like PFAS, heavy metals and other contaminants, water filtration systems play a crucial role. In this article, we'll... Read more...
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Against heavy metals and PFAS: Comparative guide between Monderma and Berkey filters
Drinking water is essential to our daily health, but it can contain various contaminants such as heavy metals and PFAS. To ensure quality water, choosing an efficient water filter is... Read more...
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Influence of endocrine disruptors on water: How do they test Coldstream and Berkey?
Endocrine disruptors are increasingly present in our environment, particularly in our drinking water. These substances can have adverse effects on human health, hence the importance of using effective filtration systems.... Read more...
Water cascades over the edge of a circular fountain.
Maintenance Tips: Cleaning and Replacing Black Berkey Filters for Optimal Flow Rate
The filtration efficiency and flow rate of your Berkey water filtration system is greatly dependent on proper filter maintenance. Whether you use a Big Berkey, Travel Berkey, or another model... Read more...
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Resistance to viruses and bacteria: Effectiveness of Berkey carbon filters
Table of contents Table of contents Introduction Why choose Berkey filters? The advantages of carbon filters Comparison of carbon filters water Filtration and efficiency: independence of results Laboratory tests Certifications... Read more...
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Water Filtration and Modern Evils: How NSF Accredited Filters Can Help?
In our modern world, where the quality of drinking water is constantly questioned, choosing an effective water filter becomes essential. Contaminants such as PFAS, pesticides, chlorine and many others represent... Read more...
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How long will your water filters last according to NSF standards?
In our quest for quality drinking water, water filters play a crucial role in removing various contaminants. However, choosing a suitable water filter involves understanding the lifespan of filters according... Read more...
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The dangers of microplastics: Protect yourself with Coldstream ceramic filters
Microplastics have become a major concern for the quality of drinking water. These tiny plastic particles infiltrate our water sources and can have harmful consequences on our health. In this... Read more...
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Comparison of Berkey vs. EMT gravity filters increase flow without compromise
Drinking water quality is a major public health issue, particularly at a time when pollution and contaminants are invading our water resources. Gravity filters, such as those offered by Berkey... Read more...
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Analyzing drinking water for contaminants: What do certified laboratory tests say?
Drinking water is essential to our daily survival. However, with the increasing pollution of our environment, the quality of the water we consume day after day can be compromised by... Read more...
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Choosing an Optimal Water Filter: Buying Guide for Notarized Water
Drinking water is essential to health and well-being. However, water quality can be compromised by various contaminants. Choosing a suitable water filter is therefore crucial to guarantee access to notarized... Read more...
Water filter comparison: which model to choose for your home?
Water is a precious resource, and guaranteeing its purity for our daily consumption is essential. With so many options available, how do you choose a water filter that's right for your needs? In this article, we will make a comparison of some popular models of water filters, including those from the Berkey brand, as well as other high-performance models.Why choose a water filter?Choosing a water filter ensures you have quality water, without harmful contaminants. But faced with a varied offering, how can you be sure you're making the right choice?... Read more...
Comparison of NSF certifications and tests of the main gravity filters
Comparison of water filters: NSF certifications, laboratory tests and contaminants analyzed The NSF certification constitutes a real guarantee of seriousness. It means that a product, material or performance has been evaluated according to precise requirements by an independent organization. However, it does not mean that a filter automatically eliminates all contaminants present in the water. Each manufacturer chooses the performances, called claims, that it wishes to have tested or certified. Two filters bearing NSF certification can therefore have very different filtration capacities. To correctly compare several filters, you should not... Read more...
Why a new generation of water filters is emerging
Why a new generation of water filters is emerging After understanding the differences between granular carbon and carbon block, a question naturally arises: why are these technologies evolving today? The answer is in one word: pollutants have changed. 1. Water different from yesterday For a long time, filtration systems were designed primarily to improve: taste and odor (chlorine), suspended particles, certain classic contaminants. Today, the reality is different. We are now talking about: pesticide residues, traces of drugs, endocrine disruptors, complex organic compounds. These substances are often present at very... Read more...
Activated carbon: granular or block, a difference that changes everything
Granular carbon or carbon block: what is the difference for filtering your water? When we are interested in water filtration by gravity, an essential technical point often remains unknown: the type of carbon used inside the filter. Two big ones approaches coexist today in gravity filtration systems: the combination ceramic + granular activated carbon, (used in many gravity filters on the market). the combination ceramic + carbon block. On paper, the two solutions are based on a similar logic: combining a ceramic barrier with a carbon media intended to reduce... Read more...
French and European standards on chlorine in drinking water
Chlorine is widely used to disinfect drinking water and eliminate bacteria, viruses and others microorganisms. Its presence in tap water is therefore normal, but it is regulated Read more...
VAT and water bottles: now is the right time to switch to home filtration systems.
Faced with the increase in VAT on bottled water, it's the ideal time to switch to home filtration. With solutions like Monderma FTO+ water filters or EVA fountains, you reduce waste and enjoy quality water without disposable bottles. Read more...
Understanding NSF Certifications in Water Filtration
When choosing a water filter, you often see mentions like NSF 42, 53, 372, 401 or P231. These codes define what your filter is actually capable of eliminating. Here is a clear and complete guide. Read more...
Water alert in Nantes: sharp increase in cases of hepatitis A
Atypical increase in hepatitis A in Nantes Since June 2025, 16 cases of hepatitis A have been confirmed in Nantes, a higher figure than in previous years. The ARS warns of this unusual resurgence. The virus is transmitted by the fecal-oral route: contaminated water or food, lack of hygiene. Water plays a key role, particularly in washing fruits and vegetables. In some precarious homes, the lack of suitable toilets increases the risk. Symptoms include nausea, abdominal pain, fatigue and jaundice. Although generally mild, the infection can be serious in vulnerable... Read more...
Heatwave: be careful of this little-known risk linked to too much water consumption
During periods of extreme heat, we are often told: “Drink water”. But it is also possible to drink too much, to the point of endangering your health. This risk is called hyponatremia. What is hyponatremia? Hyponatremia is an abnormal drop in blood sodium (too much water in relation to the salt available, or when we lose too much salt (sweating, certain medications) without compensating. The blood then becomes “diluted”, the water enters the cells which swelling (including in the brain), which can cause serious complications. Symptoms to watch for Nausea,... Read more...
Microplastics: Contrex and Hépar singled out for alarming levels
A legal investigation targeting Nestlé Waters highlights record levels of microplastics in water minerals Contrex and Hépar. Analyzes reveal 515 particles per liter for Contrex and 2096 particles per liter for Hépar – i.e. up to 1.3 million times more than what is usually found in lakes, rivers or rivers. Read more...
Survival, emergency, travel: the most underestimated tool
This straw can save your life Ultra-compact, light and without the need for electricity, the survival straw is the essential tool for accessing drinking water in all circumstances: Hiking and bivouac : drink directly from the river or stream without carrying bottles. Emergency situation : in case of disaster, water cut or evacuation, it allows you to drink even from a puddle. Traveling abroad : avoid unreliable tap water, infections and bottles polluting plastics. 💧 Powerful and immediate filtration Thanks to a high-precision filter membrane (generally 0.1 micron), this straw... Read more...
The ANSES shock study on glass bottles
Microplastics: the ANSES shock study on glass bottles A recent ANSES study reveals that drinks packaged in glass bottles contain more microplastics than those in plastic, bricks or cans :contentReference[oaicite:1]{index=1}. 📌 Key results Soft drinks (cola, beer, lemonade, iced tea) in glass: approximately 100 microplastic particles per liter, i.e. 5 to 50 times more than in plastic or cans :contentReference[oaicite:2]{index=2}. For water bottled in glass: 4.5 particles per liter, compared to 1.6 particles in plastic bottles or bricks :contentReference[oaicite:3]{index=3}. 🧪 Origin of contamination The study shows that the particles mainly... Read more...
Water appears clean... but is it really healthy?
Mirror effect of bacteria in water: what you need to know Even after filtration, the water can contain fragments of dead bacteria : cell walls, toxins, DNA. These residues are no longer alive, but they can : deceive quality tests, stimulate immune reactions or allergies, alter taste or biological balance. 👉 This is what we call the bacterial mirror effect : an illusion of purity. The awakening of bacteria dormant Certain bacteria do not die: they go dormant in a state VBNC (Viable But Not Cultivable). They survive: in the... Read more...
Black Berkey®: High Performance Filtration Against All Contaminants
Analysis of Black Berkey® Filter Tests 1. Extent of Tests Performed The Black Berkey® filters have undergone extensive testing on a wide spectrum of contaminants, carried out by certified laboratories. Heavy metals: Proven reduction >99% on Arsenic, Lead, Mercury, Aluminum, etc. PFAS and perfluorinated compounds: >99.9% reduction in PFOA, PFOS, PFNA, etc. Microbiological pathogens: >99.9999% reduction in bacteria and >99.997% in viruses. Parasites : Cryptosporidium and Giardia eliminated by >99.994%. Pesticides and herbicides: >99.9% reduction on more than 75 chemical compounds. Radioactivity: 95.3% reduction for Beta and 98.7% for Alpha... Read more...
Coldstream FTO+: Reliable Filtration with a Secure Protocol
Analysis of Coldstream FTO+ Filter Tests: Efficiency and Durability After examining the performance sheets of the Coldstream FTO+filters, here is a detailed analysis of their filtration capacity and the limits concerning their long-term performance. 1. Analysis protocol and volume tested The tests were carried out by Envirotek Laboratories, under certification NSF/ANSI 42, 53 and P231. Recommended volume and duration of use Nominal capacity announced : 1,500 liters per filter, or 6 months of use, whichever comes first. Protocol security : If 1,500 liters is reached before 6 months, it is... Read more...
Water Contamination with Vinyl Chloride
What is vinyl chloride? Vinyl chloride is a chemical compound used primarily in the production of PVC (polyvinyl chloride), a plastic widely used in pipes, packaging, coatings, etc. It is a colorless gas at room temperature, which can dissolve in water. Sources of water contamination: Industrial spills: Discharges from PVC manufacturing or processing plants. Leaks from storage sites or pipelines containing vinyl chloride. Water pollution groundwater: Old industrial sites or landfills containing chemicals may release vinyl chloride into groundwater. Degradation of chlorinated solvents (such as tetrachlorethylene or trichloroethylene) may produce... Read more...