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Story of Real Water
What’s actually
in your water?
Straight answers about minerals, TDS, waste and taste. Written to be useful, whether or not you ever buy anything from us.
Podcast
Know your water: the Dr Pal podcast on RO, minerals and CDI
A gastroenterologist and Crompton’s CFO sit down for an hour on what a purifier removes, what it should keep, and why the fifth stage of the Biofier is the one that matters.
7 min readLatest in News
The story of real water
Spring, tap, bottle, membrane. How we solved for safety and quietly lost the thing that made water worth drinking.
The green gram test
A certified germination study you can repeat at home with two jars of moong and a week of patience.
What was in the four waters
Before a single seed was planted, TÜV SÜD measured the tap, the RO and the Biofier water from the same supply on the same day.
Ten stages, one job
What each stage removes, what the CDI cell is for, and why the minerals are the one thing it is built to leave alone.
Why we called it a Biofier
Five years, two countries, two patents and one word that says what the machine is for rather than what it does.
What actually stays in the water
Two purifiers, the same feed water, and a threefold difference in what ends up in your glass.
Three glasses to give you one
The reject line under your sink is not a fault. It is how reverse osmosis works, and it is the single biggest thing CDI changes.
Is low TDS actually good for you?
The number on the meter counts calcium and lead the same way. Here is why a lower reading is not the win it looks like.
Does RO remove minerals from your water?
Yes — and not by accident. It is a direct consequence of how the technology works.
Why RO water tastes flat
It is not your imagination, and it is not a fault. Taste is chemistry, and yours has been removed.
How much water does an RO purifier waste?
Around three glasses down the drain for every glass you drink. Here is where it goes, and what it adds up to.
Remineralised water is not the same as water that kept its minerals
Adding minerals back after stripping them is a different process with a different result — and Indian standards treat it differently too.
What should drinking water actually contain?
There is published guidance on minimum desirable mineral levels. Most demineralised water sits below it.
What is a biofier?
A new word, because the existing one describes the wrong behaviour. Here is the distinction it is meant to carry.
What an independent lab actually found
Fifteen test conditions, a competitor RO alongside, and one result nobody expected.
Why your water changes with the season
Same tap, same city, different water. What actually varies, and why it matters more than a headline number.
Is bottled water actually any better?
Sometimes. Often it is the same water you would get at home, through a longer and less accountable journey.
What a water purifier really costs over five years
The sticker is the smaller half. Here is the arithmetic nobody does at the point of sale.
Seven questions to ask before you buy any purifier
Including ours. If a seller cannot answer these, that is your answer.
Where CDI came from
Not a domestic invention. It came from making seawater drinkable, and it arrived in kitchens by getting smaller.
Or just askXT answers questions about your water in plain language, with the proof attached.
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