# Guide

> Knowledge about drinking water, filtration and water quality. Comparisons, contaminant guides, and practical expertise from the Maunawai family.

*Guide*

## We share,

what we have learnt in almost thirty years of working with water. Factual, practical and easy to understand — so that you can make a decision that suits your lifestyle.

**A comparison of water filters**

Jug filters, activated carbon, reverse osmosis, gravity-fed or mains-connected? Five systems, honestly reviewed with a comparison table.

**An alternative to a filter jug**

Why more and more people are looking for an alternative solution, and what makes natural gravitational filtration using 21 ceramic discs different.

**PFAS in drinking water**

What are persistent chemicals, how do they end up in water, and how can they be effectively filtered out?

**Heavy metals in tap water**

Water companies comply with the legal limits. However, their responsibility ends at the property boundary. What happens after that is down to the homeowner. Lead, copper, nickel: where they come from and what you can do about them.

**Microplastics in drinking water**

How tiny plastic particles end up in our water and which filter systems reliably trap them.

**Drinking tap water – yes or no?**

An honest look at the quality of tap water in Switzerland, Germany and Austria. What the water suppliers guarantee and where your responsibility lies.

**MAUNAWAI vs. Brita**

Ion exchanger or gravity filter? An honest comparison of two jug filters using fundamentally different technologies.

**Why bottled water isn't worth it**

17 billion single-use bottles a year in Germany. What alternatives are available, and why filtered tap water is the simplest solution.

**Water filters: Questions and answers** — The Big Guide

---
[https://www.maunawai.com/mt/en/guide](https://www.maunawai.com/mt/en/guide)