Although in the modern era misuse of water bodies and industrial development have polluted the water.
As a result, installing a water purifier has become a necessity rather than a luxury.
How most water purifying companies are misleading you with their cheap marketing tactics?
What is the truth about mineral water?
An eye-opening thread🧵:
Although in the modern era misuse of water bodies and industrial development have polluted the water.
As a result, installing a water purifier has become a necessity rather than a luxury.
👉Let's briefly discuss the water purification technologies available in the Indian market:
For most people, water purifier means RO.
It is a powerful technology which can purify the most contaminated, even salty water in just one go.
In RO system, water passes through a semi-permeable membrane of pore diameter 0.0001 micron.
This minute filtration removes 90% of impurities, heavy metals, microorganisms and minerals.
After this, what you get is pure, sweet, transparent and demineralisef water.
NF and RO technologies work on similar principle, the only difference being pore size.
In NF the pore diameter is 0.001 microns.
It removes heavy metals, turbidity and chemicals but unlike RO, it doesn't change the mineral content of the water.
This technology filters water without the use of electricity.
In this, the water passes through a hollow fiber membrane with a pore size of 0.01 microns.
This also removes impurities without changing the mineral content of the water.
4. UV CHAMBER
The above three technologies can remove the solid and chemical impurities but may not be able to kill the tiny microorganisms.
👉How to determine which technology is best for you?
All you need is a TDS METER.
TDS stands for Total Dissolved Solids which is the measure of dissolved minerals, salts, metals anf impurities in the water.
According to Bureau of Indian Standards (BIS), water with TDS upto 500 is safe for human consumption.
TDS between 300 to 500 is acceptable but TDS less than 100 is not ideal as it is devoid of most minerals.
Packaged water, which is said to be mineral water has a very low TDS.
Kinley, TDS = 24, bad
Aquafina, TDS = 7, very bad
This is because most companies are giving it sweet, demineralized RO water because RO technology purifies hardest of waters.
Companies have to setup just 1 plant and they are ready to roll.
RO is a phenomenal technology but was actually developed mainly for marines so that they can readily purify salt water and drink it.
RO was meant for survival not for everyday home consumption.
Some companies actually sell mineral water like:
Qua, TDS = 180, good, Rs. 100
Himalaya, TDS = 237, very good, Rs. 59
Bisleri Vedika, TDS = 181, good, Rs.60
Once you have a TDS meter which you can buy easily for about Rs. 120 to Rs. 180, check the TDS of your tap water.
You can add minerals to this water to some extent by storing the RO water in clay pots or copper jugs.
👉How big companies are making money out of people's ignorance using cheap marketing tactics, 5 instances:
This is a joke.
Once the water is passed through a strainer with smaller holes, what is the use of straining it again with a strainer with bigger holes.
TDS controller is nothing just a bypass valve (worth Rs. 50) which mixes a small amount of tap water with RO purified water to increase its TDS value.
What is even the point of doing this!
To earn profits and to win the competition by delivering water purifier at cheapest possible price, many companies have started to make UV chambers made from Aluminum and not food grade stainless steel.
Also, UV chamber must be placed horizontally to kill the bacteria and viruses more effectively.
More filters doesn't mean more pure water.
No matter how hard or impure the water is, it doesn't require mare than 4 chambers:
•sediment filter
•carbon filter
•membrane
•UV chamber
RO water is slightly acidic, to curb this companies came up with the idea of alkaline cartridges which change the pH of water chemically which can be even more harmful for the human body.
I saw this video on YouTube by @FitTuber and felt like sharing with you all.
Retweet the 1st tweet to spread this awareness.🔄
Feedback will be highly appreciated.
Stay healthy, stay safe.❤
Until next time, byebye!👋
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👨💻 Last resume I sent to a startup one year ago, sharing with you to get ideas:
- Forget what you don't have, make your strength bold
- Pick one work experience and explain what you did in detail w/ bullet points
- Write it towards the role you apply
- Give social proof
/thread
"But I got no work experience..."
Make a open source lib, make a small side project for yourself, do freelance work, ask friends to work with them, no friends? Find friends on Github, and Twitter.
Bonus points:
- Show you care about the company: I used the company's brand font and gradient for in the resume for my name and "Thank You" note.
- Don't list 15 things and libraries you worked with, pick the most related ones to the role you're applying.
-🙅♂️"copy cover letter"
"I got no firends, no work"
One practical way is to reach out to conferences and offer to make their website for free. But make sure to do it good. You'll get:
- a project for portfolio
- new friends
- work experience
- learnt new stuff
- new thing for Twitter bio
If you don't even have the skills yet, why not try your chance for @LambdaSchool? No? @freeCodeCamp. Still not? Pick something from here and learn https://t.co/7NPS1zbLTi
You'll feel very overwhelmed, no escape, just acknowledge it and keep pushing.
- Forget what you don't have, make your strength bold
- Pick one work experience and explain what you did in detail w/ bullet points
- Write it towards the role you apply
- Give social proof
/thread
"But I got no work experience..."
Make a open source lib, make a small side project for yourself, do freelance work, ask friends to work with them, no friends? Find friends on Github, and Twitter.
Bonus points:
- Show you care about the company: I used the company's brand font and gradient for in the resume for my name and "Thank You" note.
- Don't list 15 things and libraries you worked with, pick the most related ones to the role you're applying.
-🙅♂️"copy cover letter"
"I got no firends, no work"
One practical way is to reach out to conferences and offer to make their website for free. But make sure to do it good. You'll get:
- a project for portfolio
- new friends
- work experience
- learnt new stuff
- new thing for Twitter bio
If you don't even have the skills yet, why not try your chance for @LambdaSchool? No? @freeCodeCamp. Still not? Pick something from here and learn https://t.co/7NPS1zbLTi
You'll feel very overwhelmed, no escape, just acknowledge it and keep pushing.