Section · 11 guides
Water Filtration Systems
Getting clean water out of a tap, a borehole or a barrel. What each kind of filter removes, what it cannot, and how to size one.
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Tools · Home Water FiltersFive Reasons A Home Water Filter Is Worth ItBetter tasting water you actually drink, a shower that stops drying your skin, no more bottles, appliances that last longer, and water when the mains fail.…8 Sep 2026
Tools · Reverse OsmosisDoes A Reverse Osmosis System Remove Fluoride?Yes — typically 85 to 95 per cent. A complete guide to how the membrane does it, what changes the figure, what else reverse osmosis removes, the waste water…8 Sep 2026
Tools · Home Water FiltersDoes A Berkey Shower Filter Remove Fluoride?No. The shower filter uses KDF-55, which works on chlorine and metals by a chemical route that fluoride cannot take part in. Here is what it does remove, and…8 Sep 2026All guides in this section
Tools · Water Filtration Systems · 8 Sep 2026How To Clean Activated Carbon Water Filters To Make Them Last LongerYou can rinse the outside of a carbon block and buy back some flow. You cannot restore the carbon itself. Here is the difference between the two…
Tools · Home Water Filters · 8 Sep 2026How To Clean Berkey Fluoride Filters The Simple WayThe short answer is that you do not clean them, you replace them. Here is why, what you can clean, and how to work out which part of your system has…
Tools · Home Water Filters · 8 Sep 2026How To Deal With Mould On Black Berkey FiltersGrowth on gravity filter elements is a storage problem, not a filter fault. Here is how to tell mould from normal discolouration, which parts you can…
Tools · Home Water Filters · 8 Sep 2026What Is A Whole House Water Filter, And Do I Need One?A complete guide to point-of-entry water filtration — what the stages do, what it fixes and what it cannot, sizing and pressure drop, mains versus…
Tools · Home Water Filters · 8 Sep 2026What Size Berkey For A Family Of Four?The Big Berkey suits four people, but only just. Here is how to work out the flow you actually need, why the number of elements matters more than the…
Tools · Home Water Filters · 8 Sep 2026What Size Berkey For A Family Of Five?The Royal is the right size for five people. Here is the arithmetic behind that, why five crosses a threshold that four does not, and why the element…
Tools · Home Water Filters · 23 Oct 2023Berkey Water Filter System ReviewThe Definitive Guide to Berkey Water Filters Water is an essential component of life, but ensuring that what we consume is pure and safe is…
Tools · Reverse Osmosis · 1 Feb 2022Is Reverse Osmosis Water Bad For Kidneys: Drinking Water Or Poison?Reverse Osmosis water is water that has been filtered through a special system to remove impurities. This water is said to be better for you than…
Tools · Home Water Filters · 8 Sep 2026How To Clean Berkey Fluoride Filters The Simple WayThe short answer is that you do not clean them, you replace them. Here is why, what you can clean, and how to work out which part of your system has…Tools · Home Water Filters · 8 Sep 2026How To Deal With Mould On Black Berkey FiltersGrowth on gravity filter elements is a storage problem, not a filter fault. Here is how to tell mould from normal discolouration, which parts you can…Tools · Home Water Filters · 8 Sep 2026What Is A Whole House Water Filter, And Do I Need One?A complete guide to point-of-entry water filtration — what the stages do, what it fixes and what it cannot, sizing and pressure drop, mains versus…Tools · Home Water Filters · 8 Sep 2026What Size Berkey For A Family Of Four?The Big Berkey suits four people, but only just. Here is how to work out the flow you actually need, why the number of elements matters more than the…Tools · Home Water Filters · 8 Sep 2026What Size Berkey For A Family Of Five?The Royal is the right size for five people. Here is the arithmetic behind that, why five crosses a threshold that four does not, and why the element…Tools · Home Water Filters · 23 Oct 2023Berkey Water Filter System ReviewThe Definitive Guide to Berkey Water Filters Water is an essential component of life, but ensuring that what we consume is pure and safe is…Tools · Reverse Osmosis · 1 Feb 2022Is Reverse Osmosis Water Bad For Kidneys: Drinking Water Or Poison?Reverse Osmosis water is water that has been filtered through a special system to remove impurities. This water is said to be better for you than…