Journal

What we’ve learned about water.

Longer pieces on water chemistry, home water engineering and what it takes to keep a water system working for years.

A residential apartment complex in Kolkata, the kind of building one inlet water plant can serve

Voice·

24 October 2026

6 min read

Why Uniwater is the best water treatment company in Kolkata

Kolkata’s water treatment market is full of catalogue sellers moving the same off-the-shelf units. Here is what ‘best’ should actually be measured against, and where Uniwater stands on each measure.

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A marble bathroom with brass and chrome fittings, the kind that ages badly when the water isn’t treated

Voice·

16 October 2026

4 min read

Premium fittings on un-treated water: a slow disaster

Hansgrohe, Kohler and Grohe fittings are engineered for a feed-water spec most Indian residential supply does not meet. What goes wrong, and when.

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A glass of re-mineralised Uniwater drinking water on a marble kitchen counter

Chemistry·

2 October 2026

4 min read

Re-mineralisation after RO: why it matters

RO strips everything. Re-mineralisation adds back what the body and the taste need. The post-RO stage that turns flat water into real water.

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A Uniwater engineer at work. The same team looks after the system for the life of the contract

Service·

18 September 2026

5 min read

AMC tiers, honestly explained

Standard is quarterly, Comprehensive is monthly, and Premium is monthly with priority response. What each tier includes, what it costs, and why monthly service pays off.

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Service·

4 September 2026

5 min read

What's actually in your monthly service report

Before, On site, After of a real Uniwater service visit: the readings we log, the work we do, and what "flag raised" means.

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A HomeSoft whole-house system installed inside a finished home, vessels integrated into the corner

Decision·

21 August 2026

5 min read

Whole-house vs point-of-use: a decision tree

Two treatment patterns, very different costs and right-fits. When per-bathroom works, when whole-house works, and how the survey decides.

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Cumulative scale damage inside a geyser after years on untreated hard water

Decision·

7 August 2026

5 min read

The five-year cost of doing nothing

Replaced geysers, re-polished marble, dull shower heads, a dishwasher on its second service. What ignoring water chemistry adds up to over five years.

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A water analysis in progress. TDS is one number on a much longer test report

Voice·

24 July 2026

5 min read

TDS isn't a quality metric. Here's what is.

Low TDS is not purer. High TDS is not dirtier. What total dissolved solids actually measures, and the parameter that matters more.

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A finished bathroom vanity. Soft water changes how a shower feels on skin and hair

Chemistry·

10 July 2026

4 min read

Soft water vs salt water: what your skin actually feels

Ion exchange swaps calcium for sodium. Some assume salty water. It does not. What softening actually does to your bath water, plain.

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Uniwater engineer drawing a water sample at the kitchen tap during the on-site test

Decision·

26 June 2026

6 min read

How to read a water test report

TDS, hardness, iron, pH and FRC: five numbers that decide what your water needs. What each one measures, what the thresholds mean, and what to ask the tester.

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A chrome tap in a finished bathroom, the kind of fitting that needs the water spec checked before the install

Voice·

12 June 2026

5 min read

Hansgrohe specifications and Indian water reality

Premium European fittings ship with a feed-water spec. Most Indian residential supply doesn’t meet it. The mismatch dulls the chrome at 18 months.

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Wet hair after a shower. Hard, iron-rich water shows up here first, as roughness and breakage

Chemistry·

9 June 2026

7 min read

Can hard water cause hair fall? What the science actually says

Hard water doesn't cause baldness, but hard, iron-rich water weakens and roughens hair until it breaks. What the evidence shows, the warning signs, and how to fix it at the source.

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