Water Library

Understand your water before you buy

Plain-language guides to filtration, water quality, and choosing the right system for Southeast Asian homes and businesses.

All Buying Guides Water Science Health & Wellness Care & Maintenance Water in Indonesia

Water Science7 min

Does the pH of Drinking Water Actually Matter?

pH measures whether water is acidic or alkaline, but it is not the primary indicator of drinking-water safety or quality. This article explains what pH does and does not tell you — and why the alkaline-water marketing claims deserve scepticism.

Jun 19, 2026Read article

Water Science7 min

Microplastics in Drinking Water: What the Evidence Says and How Filtration Helps

Microplastics turn up in tap water, bottled water, and air galon refills. Here is what they are, how they get into your water, what the current health research actually shows, and which filter technologies physically exclude them.

Jun 19, 2026Read article

Water Science8 min

Nitrates in Groundwater: Why Boiling Makes It Worse

Nitrate is colourless, odourless, and tasteless — you cannot detect it without a test. Learn where it comes from, why boiling concentrates it, and which treatment methods actually remove it from drinking water.

Jun 19, 2026Read article

Water Science8 min

RO Wastewater Ratio Explained: Why Reverse Osmosis Produces Reject Water and How to Reduce It

Reverse osmosis systems produce a reject stream alongside clean permeate. This article explains why the waste ratio exists, what worsens it, and practical ways to reduce it — with context for Indonesian homes on metered PDAM supply or borehole water.

Jun 19, 2026Read article

Water Science9 min

The 80% Water-Efficiency RO: What It Means for Your Water Bill

Most RO systems discard three litres for every one they purify. The UR-S61096H's 80% efficiency rating changes that calculation — here is what it means for a household on metered PDAM supply.

Jun 19, 2026Read article

Water Science7 min

Activated Carbon in Water Filters: How Adsorption Works

Activated carbon removes chlorine, taste, odour, and organic compounds through adsorption — not filtration. Understand the chemistry, the difference between GAC and carbon block, and where carbon fits in a multi-stage system.

Jun 18, 2026Read article

Water Science10 min

Bacteria and Viruses: What UF, RO, and UV Actually Remove

Pore size determines what a filter blocks — and mechanism determines what it cannot. This is how UF, RO, and UV each perform against bacteria and viruses: the pore sizes, log-reduction figures, and why stacking technologies closes the gaps.

Jun 18, 2026Read article

Water Science8 min

Chlorine and Chloramine in Tap Water: What They Are and Why Carbon Removes Them

Chlorine and chloramine disinfect piped water — but both react with organic matter to form disinfection byproducts including trihalomethanes. Here is the chemistry, why activated carbon removes them, and what it cannot do.

Jun 18, 2026Read article

Water Science8 min

How Reverse Osmosis Works

Reverse osmosis forces water through a membrane with pores tight enough to block dissolved ions. Here is the full sequence — membrane physics, the filtration stages, wastewater, and remineralisation — explained clearly.

Jun 18, 2026Read article

Water Science8 min

How Ultrafiltration Works

Ultrafiltration pushes water through hollow-fibre membranes with pores of 0.01–0.1 micron, blocking bacteria, protozoa, and particles while keeping dissolved minerals intact. A plain-language guide to UF membrane technology, what it removes versus RO, and how to know which suits your water.

Jun 18, 2026Read article

Water Science9 min

Multi-Stage Filtration Explained: What Each Stage Does and Why the Order Matters

No single medium removes every contaminant — multi-stage systems chain sediment, activated carbon, membrane, and post-treatment stages because each targets what the previous stage cannot, and the sequence is not arbitrary.

Jun 18, 2026Read article

Water Science8 min

Remineralisation Explained: Why Minerals Are Added Back After RO

RO strips minerals along with contaminants, leaving water flat in taste and slightly acidic. Here is why that happens, what mineral cartridges actually do, and what they cannot do.

Jun 18, 2026Read article

Water Science8 min

The RO Membrane Explained: Construction, Rejection Rate, and Lifespan

A precise look at how TFC RO membranes are constructed, what rejection rate actually measures, and the specific conditions — chlorine, scaling, fouling — that shorten membrane life. Includes Indonesia-specific context.

Jun 18, 2026Read article

Water Science7 min

Water Hardness and Scale: What They Are and Why They Matter

Water hardness — calcium and magnesium dissolved in your supply — is the root cause of limescale on heating elements, taps, and appliances. This article explains the chemistry, the damage, and what to do about it in an Indonesian household.

Jun 18, 2026Read article

Water Science5 min

Understanding TDS in Drinking Water

A TDS meter measures dissolved solids, not safety. Here is what the number really tells you, what it misses, and why low TDS does not always mean clean.

May 6, 2026Read article