![]() ![]() The included TDS meter will inform you when a replacement is due. In some cases, the longevity may be cut shorter, depending on the TDS level and overall water quality. This means ZeroWater will be costlier in the long run because of more frequent filter replacements.įor instance, the ZeroWater 40-gallon model can only last 1 to 2 months. Unsurprisingly, Berkey also has the upper hand in filter longevity, beating ZeroWater by almost a decade (10 years vs. We know that filters can clog easily the smaller their pores are. Although the ZeroWater arsenic removal capabilities are impressive, its inability to reduce cysts, viruses and bacteria makes Berkey the clear winner in filtration performance. 3 disinfectants (i.e., chloramine and chlorine)īerkey gains the upper hand in this department.24 inorganic chemicals and heavy metals.Meanwhile, Berkey removes about 232 water impurities, including the following. Unsurprisingly, this water filter can reduce total dissolved solids (TDS). ![]() It is worth noting it features an ion exchange filter similar to a water softener. Test results show ZeroWater filters can also reduce glyphosate, chlorine, lime, lead, and other impurities.Ĭan Zero Water remove bacteria, viruses, cysts, and other harmful waterborne microorganisms? Unfortunately, it cannot.Ĭan Zero Water remove calcium and magnesium? The brand says its filters can remove dissolved minerals in the water. It can remove microplastics, including polyfluoroalkyl substances (PFAS also known as “forever chemicals”). ZeroWater’s five-stage water filtration system allows it to remove at least 29 impurities. So, let us see if their filtration performance will produce a clear winner. It is a tight race for the best countertop gravity-fed water filter between ZeroWater and Berkey. Here is a rundown of each water filter brand’s attributes. Meanwhile, Berkey’s filters are always made with stainless steel. ![]() Most of ZeroWater’s models are made of plastic, except for the glass 40-cup variant. ZeroWater is more compact than Berkey, making it an excellent choice for homeowners with limited countertop space. Storage Capacity, Dimensions, and Materials These products are two-tank systems: the top unit holds the tap water while the bottom tank stores the filtered water. They do not require electricity or pump pressure to force water and other molecules through the filter layers. The water’s weight pushes it down the filter column, making these systems simple yet effective. How They Work 5-stage filtration of ZeroWater filterīerkey and ZeroWater remove impurities by relying on gravity to pull water across semipermeable membranes. So, what are Berkey filters made of? The brand employs microfilters, ion exchange filters, and granular activated carbon filters. Meanwhile, Berkey countertop gravity-fed water filters use the Black Berkey system, featuring five proprietary-technology filter media. Rounding up ZeroWater’s filtration system is a non-woven membrane layer with an ultra-fine mesh, similar to a whole-house water filtration system’s post-filter unit. An ion exchanger purifies the water by knocking off unhealthy ions in the water. The third stage features an oxidation-reduction alloy with activated carbon for reducing chlorine, heavy metals, and organic compounds. Water moves through the second foam-based layer, screening impurities while facilitating more uniform water distribution. The first stage is a “coarse basic” filter for removing fine particles, dirt, silt, and debris. ZeroWater features a revolutionary five-stage water filtration system. Let us look at how ZeroWater compares with Berkey as a countertop gravity-fed water filter. A device’s water filtration performance hinges on its design, including filter type.
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