Clear water filter pitcher with a glass of filtered water on a bright kitchen countertop.

Culligan ZeroWater Pitcher Review

The most heavily certified pitcher filter on the market, covering total PFAS, fluoride and pharmaceuticals. The catch is a 20-gallon certified capacity.

Substitute for Distilled Water: What Works for What

There is no single substitute for distilled water, because distilled water does two unrelated jobs at once. Work out whether you need mineral free water or germ free water, and the right stand-in becomes obvious.

Glass of clear drinking water being filled from a kitchen faucet with water treatment equipment in the background.

How to Remove Manganese From Water: Methods That Work

Manganese is the contaminant most often mistaken for iron and most often treated as though it were. Here is how the removal methods differ, why pH decides which one works, and what to do about drinking water immediately.

Clear water filter pitcher and glass of drinking water on a bright kitchen countertop.

What Does a Brita Filter Out? The Certified Answer

The white standard filter and the blue Elite filter carry different certifications, and only one covers lead. Here is what each Brita format is certified to reduce, verified against Brita’s own performance data sheets.

Chrome bathroom faucet with visible hard water spots and mineral buildup beside a sink.

How to Remove Hard Water Stains From Every Surface

Hard water stains are calcium carbonate, and they dissolve in mild acid rather than coming off with effort. Here is what to use on each surface, what will permanently damage stone, and how to tell a deposit from an etch.