Water news

Pourquoi la certification NSF ne définit pas à elle seule l’efficacité réelle d’un filtre à eau
Le logo NSF est souvent présenté comme une garantie absolue. Pourtant, deux filtres certifiés NSF peuvent avoir des performances très différentes. Voici comment évaluer réellement l'efficacité d'un filtre à eau. Read more...
Comparatif des certifications et tests NSF des principaux filtres à gravité
NSF : ce que les marques ne vous expliquent pas toujours Dans le monde de la filtration de l’eau, les mentions NSF 42, NSF 53 ou NSF P231 sont omniprésentes. Elles inspirent confiance, mais elles sont aussi souvent mal comprises. La réalité est simple : tous les filtres qui mentionnent “NSF” ne sont pas certifiés NSF. Une confusion fréquente Beaucoup de produits affichent : “Testé selon les normes NSF” Mais cela ne signifie pas : “Certifié NSF” La différence est importante. NSF certifié : une validation officielle Un filtre réellement... Read more...
Pourquoi une nouvelle génération de filtres à eau est en train d’émerger
Pourquoi une nouvelle génération de filtres à eau est en train d’émerger Après avoir compris les différences entre charbon granulaire et bloc carbone, une question se pose naturellement : pourquoi ces technologies évoluent-elles aujourd’hui ? La réponse tient en un mot : les polluants ont changé. 1. Une eau différente de celle d’hier Pendant longtemps, les systèmes de filtration ont été conçus principalement pour améliorer : le goût et l’odeur (chlore), les particules en suspension, certains contaminants classiques. Aujourd’hui, la réalité est différente. On parle désormais de : résidus de... Read more...
Charbon granulaire ou bloc carbone : quelle différence pour filtrer votre eau ?
Charbon granulaire ou bloc carbone : quelle différence pour filtrer votre eau ? Lorsqu’on s’intéresse à la filtration de l’eau par gravité, un point technique essentiel reste souvent méconnu : le type de carbone utilisé à l’intérieur du filtre. Deux grandes approches coexistent aujourd’hui dans les systèmes de filtration par gravité : la combinaison céramique + charbon actif granulaire, (utilisée dans de nombreux filtres gravitaires du marché). la combinaison céramique + bloc carbone. Sur le papier, les deux solutions reposent sur une logique similaire : associer une barrière céramique à... Read more...
Perrier : plus de 2400 palettes toujours bloquées après des écarts bactériologiques
Plus de 2400 palettes de bouteilles Perrier restent bloquées après la détection d’écarts bactériologiques sur le site de Vergèze. Au total, 9534 palettes avaient été isolées, dont une grande partie a été libérée après contrôle, mais environ 4 millions de bouteilles sont encore en recontrôle. La marque fait face à de nouvelles difficultés alors qu'elle doit obtenir une autorisation préfectorale pour conserver l’appellation « eau minérale naturelle ». Read more...
TVA et bouteilles d’eau : c’est le bon moment pour passer aux systèmes de filtration à domicile.
Face à la hausse de la TVA sur les bouteilles d’eau, c’est le moment idéal de passer à la filtration à domicile. Avec des solutions comme les filtres Monderma FTO+ ou les fontaines EVA, vous réduisez les déchets et profitez d’une eau de qualité sans bouteille jetable. Read more...
Bacterial contamination of water in Utrecht: 125,000 households affected
Drinking water alert Netherlands Utrecht Utrecht (Netherlands) — Alert: presence ofEnterococcus in drinking water November 1, 2025 • Updated on November 1, 2025 An alert was issued this week in the Netherlands, after the detection of a type bacteria Enterococcus in the drinking water network supplying the Utrecht region. The water manager Vitens, one of the largest Dutch suppliers, asked residents to boil tap water for three minutes before any consumption. 📍 The municipalities concerned According to information published by Vitens and reported by Dutch media NU.nl and RTL News,... Read more...
The best water filters on the market, a free comparison table
Comparison of NSF certifications by brand ✓ Compliant (certified / tested according to standard) ✗ Non-compliant/unclaimed — Not communicated Brand NSF 42 NSF 53 NSF 372 NSF P231 Independent laboratory analyzes Monderma FTO+ ✓ ✓ ✓ ✓ ✓ (Coldstream – UK) Monderma CTO+ MAX (countertop) ✓ ✓ ✓ ✓ ✓ (Coldstream – UK) Berkey — — — — 200+ contaminants tested (USA) Doulton ✓ ✓ ✓ ✗ ✓ (UK – WRAS) Weeplow ✓ ✓ ✓ ✗ — Boroux ✗ ✗ ✓ ✗ — Brita ✓ ✗ ✓ ✗ ✓ (TÜV... 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
Microplastics are now suspected of having harmful effects on human health: hormonal disruptions, chronic inflammation, and accumulation in certain organs. The magistrate in charge of the investigation speaks of concentrations “making all aquatic life impossible” and potentially dangerous to health. Read more...
Six tips to limit your daily exposure to microplastics
Plastic bottled water is one of the main sources of microplastics, due to residue from the packaging and the cap. Even glass bottles are not completely exempt. 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+ used with the filtration system Monderma water filters, here is a detailed analysis of their filtration capacity as well as the limits of 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... 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: Directed 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): Directed by SGS (China). Test carried out when starting the filter, without mention of the total volume filtered. Effectiveness of 99,9999 %... Read more...
Weeplow or Berkey, Monderma waterfilters our opinion
Comparison between Black Berkey®, Weeplow O'Pure 2 and Black Filters Monderma® When it comes to choosing a gravity water filtration system, brands Berkey, Weeplow And Monderma offer effective solutions. However, their filters differ in composition, performance and durability. 1. Composition of filters Black Berkey® FiltersDeveloped in the United States, they are distinguished by an exclusive formula including: High quality activated carbon – eliminates chemical and organic contaminants. Colloidal silver – prevents bacterial proliferation in the filter. Patented ceramic media – exceptional filtration fineness. According to the American agency EPA, up... 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...