After some research into the more popular as well as some lesser-known water filtering units, it turns out that there are mainly two models of water filters out there really doing their jobs properly. Depending on what you want, i e dependent on the contaminants you seek to reduce (or ideally eliminate), the outcome might be slightly different.
For every-day use, water contamination with pesticides, heavy metals, antibiotics and other medical residues should be the focus of your attention. These are most common contaminants in the public water supply in almost every country today. (Water from a private well may still be exposed to nitrate as well as rain-borne contaminants as well as pesticide run-off from agricultur, a. k. a. conventional “farmers”.) To get rid of these, the AcalaQuell filtering system has one of the best set-ups. Also, this filter treats pressurised water that has run through a domestic water system to decompress and let it find its natural characteristics again, which basically means the water can “breathe” or re-naturalise before it is consumed as drinking water.
The German-made AcalaQuell system is available directly from the manufacturers via the AcalaQuell online shop as a rectangular-shaped desktop water filtering jar or a pitcher-style or “pouring can” variant with a slightly more ergonomic handle (or in Germany from Amazon.de as well as their other local-language website versions).
AcalaQuell filters beat those popular Brita filters by miles. Be aware that laboratory tests have found Brita filters (along with “Culligan”, “Pure”, and “Seychelle” filters) to actually INCREASE aluminium contamination in water by 33.9% (ouch). This is possibly due to some aluminium parts within those cartridges, so what’s the point of using Brita, really…), see these in-depth water test results for more! The Acala filter is not known to have these problems. AcalaQuell know a thing or two about Good Water and their filters are among the best thought-out on the market.
There is also a very good US-made filter called ZeroWater. This variant excels at removing heavy metals, including radioactive contaminants like uranium, caesium, strontium, plutonium (and others that might be present during a nuclear emergency and as the “payload” of alleged weather engineering cocktails appearing in regular aircraft exhausts for reasons unknown), from your drinking water. So if general heavy metals filtering or even getting rid of radioactive contamination are the main filtering need, then the pitcher-style ZeroWater filter is clearly and by far your best choice (also available from local Amazon stores like amazon.de or other language versions.
At the end of the day, we got both filtering systems, the Zero Water “just in case” or as a preventative measure along with the AcalaQuell for more regular or “every-day” use. The latter we ordered with a supply of filtering cartridges. Each of them is said to have a useful life of 2 months. This gives you plenty of output for your money and is a lot cheaper and more convenient than bottled water. (Without any fungi issues, it is also the much better option over bottled water).