Blog - Water news

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Comparatif des filtres à gravité Berkey contre EMT augmenter le débit sans compromis
La qualité de l'eau potable est un enjeu majeur de santé publique, particulièrement à une époque où la pollution et les contaminants envahissent nos ressources en eau. Les filtres à... Read more...
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Analyser les contaminants de l'eau potable : Que disent les tests de laboratoire certifiés ?
L'eau potable est indispensable à notre survie quotidienne. Cependant, avec la pollution croissante de notre environnement, la qualité de l'eau que nous consommons jour après jour peut être compromise par... Read more...
A faucet with a palm tree in the background
Choisir un filtre à eau optimal : Guide d'achat pour de l'eau notarisée
L'eau potable est essentielle à la santé et au bien-être. Cependant, la qualité de l'eau peut être compromise par divers contaminants. Choisir un filtre à eau adapté est donc crucial... Read more...
Comparatif filtres à eau : quel modèle choisir pour votre maison ?
L'eau est une ressource précieuse, et garantir sa pureté pour notre consommation quotidienne est essentiel. Avec tant d'options disponibles, comment choisir un filtre à eau adapté à vos besoins ? Dans cet article, nous allons faire un comparatif de quelques modèles populaires de filtres à eau, notamment ceux de la marque Berkey, ainsi que d'autres modèles performants.Pourquoi choisir un filtre à eau ?Choisir un filtre à eau vous assure une eau de qualité, sans contaminants nocifs. Mais face à une offre variée, comment être sûr de faire le bon choix... Read more...
Comparison of NSF certifications and tests of the main gravity filters
Comparison of NSF certifications and tests of the main gravity filters Brand / Filter NSF 42 certified (aesthetic contaminants) NSF 42 tested (lab) NSF 53 tested (lab) NSF P231 tested (independent lab) Duration (2 filters) Price / year (≈) Black Filters (activated carbon) ✔️ Yes (performance included) ❌ No ❌ No ❌ No ≈ 12 months ≈ 60–90€ Doulton Ultra Sterasyl ✔️ Yes (performance included) ✔️ Yes ✔️ Yes (depending on model) ❌ No ≈ 6 months ≈ 120–160€ British Berkefeld Ultra Fluoride ✔️ Yes (performance included) ✔️ Yes ✔️... 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 coal and block carbon, 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 have been designed primarily to improve: taste and odor (chlorine), suspended particles, certain traditional contaminants. Today, the reality is different. We are now talking about: pesticide residues, traces of medication, endocrine disruptors, complex organic compounds. These substances are often present in... 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 main 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 similar logic: combining a ceramic barrier to a carbon media intended to reduce many contaminants.... Read more...
French and European standards on chlorine in drinking water
Chlorine is widely used to disinfect drinking water and eliminate bacteria, viruses and other microorganisms. Its presence in tap water is therefore normal, but it is regulated Read more...
VAT and bottled water: now is a good time to upgrade to home filtration systems.
Faced with the increase in VAT on bottled water, now is 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 a disposable bottle. 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 hepatitis A cases
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 upsurge. 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 certain precarious homes, the absence of suitable toilets accentuates the risk. Symptoms include nausea, abdominal pain, fatigue and jaundice. Although generally mild, the infection can be serious in fragile... Read more...
Heatwave: watch out for this little-known risk linked to too much water consumption
During periods of extreme heat, we are often told: “Drink some water.”. But it is also possible to drink it too much, to the point of endangering his health. This risk is called hyponatremia. What is hyponatremia? Hyponatremia is an abnormal drop in blood sodium (too much water compared to salt available, or we loses too much salt (sweating, certain medications) without compensating. The blood then becomes “diluted”, water enters the cells which swell (including in the brain), which can lead to serious complications. Symptoms to watch out for Nausea,... Read more...
Microplastics: Contrex and Hépar singled out for alarming levels
A judicial investigation aimed at Nestle Waters highlights rates record of microplastics in mineral waters Contrex and Hepar. The analyzes reveal 515 particles per liter for Contrex and 2096 particles per liter for Hépar – either up to 1.3 million times more than what is usually found in lakes, rivers or streams. Read more...
Survival, emergency, travel: the most underestimated tool
This straw can save your life Ultra-compact, lightweight 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 the event of a disaster, water cut or evacuation, it allows you to drink even from a puddle. Travel abroad : avoid unreliable tap water, infections and polluting plastic bottles. 💧 Powerful and immediate filtration Thanks to a high precision filter membrane (generally 0.1... Read more...
The shocking ANSES study on glass bottles
Microplastics: the shocking ANSES study on glass bottles A recent ANSES study reveals that drinks packaged in glass bottles contain more microplastics than those made of 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 plastic or can: contentReference[oaicite:2]{index=2}. For glass bottled water: 4.5 particles per liter, against 1.6 particles in plastic bottles or bricks: contentReference[oaicite:3]{index=3}. 🧪 Origin of contamination The study shows that the particles mainly come from the... Read more...
The water looks clean… but is it really healthy?
Mirroring bacteria in water: what you need to know Even after filtration, the water may contain fragments of dead bacteria : cell walls, toxins, DNA. These residues are no longer alive, but they can: cheat quality tests, stimulate immune reactions or allergies, alter taste or biological balance. 👉 This is called the bacterial mirror effect. : an illusion of purity. The awakening of dormant bacteria Some bacteria do not die: they go dormant in a state VBNC (Viable Purpose Not Cultivable). They survive: in the microcracks of used filters, in... Read more...
Black Berkey®: High Performance Filtration Against All Contaminants
Black Berkey® Filter Test Analysis 1. Extent of Tests Carried Out Filters Black Berkey® have undergone extensive testing on a broad 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 on PFOA, PFOS, PFNA, etc. Microbiological pathogens: >99.9999% reduction of bacteria and >99.997% of viruses. Pests: Cryptosporidium and Giardia eliminated >99.994%. Pesticides and herbicides: >99.9% reduction on over 75 chemical compounds. Radioactivity: Reduction of 95.3% for Beta emissions and 98.7% for Alpha emissions. Uranium:... Read more...
Coldstream FTO+: Reliable Filtration with a Secure Protocol
Coldstream FTO+ Filter Test Analysis: Effectiveness and Durability After reviewing the filter performance sheets Coldstream FTO+, 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, depending on the first limit reached. Securing the protocol : If 1,500 liters are reached before 6 months,... Read more...
Weeplow O’Pure 2: XXL Promises, Mini Tests?
Analysis of Weeplow Claims vs. Available Tests 1. Analysis Protocol and Tested Volume Tests on the filter Weeplow O'Pure 2 were carried out on small volumes of water and short term. Examples of volumes tested and laboratories involved: Microbiological test: Made by BCS Laboratories (USA). Volume tested: 300 liters of water in 4 days. Analysis of the reduction of coliforms, E. coli, Enterococcus faecalis. Virus test (MS2 Coliphage): Made by SGS (China). Test carried out when starting the filter, without mention of the total volume filtered. Effectiveness of 99,9999 %... 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. Groundwater pollution: Old industrial sites or landfills containing chemicals can release vinyl chloride into groundwater. Degradation of chlorinated solvents (such as tetrachlorethylene or trichlorethylene) can produce vinyl... Read more...