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Are you looking forward to purchasing the best water purifier for home? Diarrhea and cholera are the two most common water bearing diseases that cause thousands of deaths each year. This is why it is significant that we have a good water purifier at home.
The water supply that you receive at home may not be as clean as it looks. It contains several hidden contaminated particles such as chlorine, fluoride, waste particles, pesticides, lead, and many other bacteria and viruses that cause diseases. The water needs to go through a purification process that will clean it, kill the bacteria or virus present in it, and remove them too.
How Does a Water Purifier Work ?
Water purifiers use different technologies to purify the water before dispensing water from the tap. The four main technologies used are:
- Reverse Osmosis or RO filtration system – This system passes the water through a semi-permeable membrane, which stops any dissolved solutes from passing through this membrane. It filters all types of water contaminants like pesticides, ions, chemicals and micro-organisms from water.
- Ultra Violet Technology or UV-C rays – They enter the body of pathogens and neutralize them. The UV rays can kill 99.9% of the microorganisms present in the water. These rays amend the DNA of the pathogens and make them incapable of multiplying.
- Ultra Filtration Technology or UF system – It makes use of hydrostatic pressure and surges the water against a semi-permeable membrane. This semi-permeable membrane catches different types of contaminants like bacteria and various microorganisms and cleans it. It also clean bad odour from the water.
- Activated Carbon Filter – This is a bed of charcoal treated with oxygen that works as a filtering method. It helps in the removal of organic compounds and chlorine present in the water. Organic compounds include metal compounds and pesticides. This filtration system also cleans colour causing compounds from the water that make it look cloudy and removes smell too.
Every technology has a specific set of benefits. The best water purifier for home 2020 would be one that uses multiple technologies of water purification.
Additional Features to Look in a Water Purifier
Along with 4 or 5 stages of purification process, a good water purifier will also have features like:
- Good storage capacity between 8 and 10 litres
- TDS controller to retain important minerals
- LED display screen for service reminders and filter change alerts
- Less consumption of energy and in-built voltage guard
- Stainless steel body prevents the growth of bacteria mold in the stored water
- Less wastage of water
Benefits of Having a Water Purifier
A water purifier ensures that you and your family have access to safe drinking water free from chemicals, harsh minerals and disease causing bacteria and germs.
Hard water, when used in the appliances of your kitchen such as coffee makers, will damage them with a deposit of iron scaling or lime. Purified water increases the life of your kitchen appliances.
What are the types of impurities present in water ?
There are two types of impurities in drinking water – dissolved and suspended.
Suspended impurities are not completely soluble in water. They cause the water to turn turbid and cloudy. Some suspended impurities present in water are sand, mud, dust, clay, rust, etc.
Dissolved impurities that are ones that are soluble in water and harmful when ingested. Some dissolved impurities in water are metals such as cadmium, lead, mercury, etc. Other impurities include arsenic, pesticides, chlorine, etc.
Does the process of Reverse Osmosis or RO remove essential minerals present in the water ?
The best water purifier for home use from good brands does not remove any good minerals Water purifiers from good brands do not remove any good minerals from the drinking water. They make use of mineral modulator that produces electromagnetic vibrations in the water which prevents the formation of mineral scale in the UV chamber. Thus it retains all the essential minerals in the water that are good for your health.
What is the difference between purified water and bottled mineral water ?
There are two main differences between purified water and bottled mineral water – purification and the cost.
Water purifiers will give you water, which is microbiologically, chemically and physically pure. If you are using a water purifier that has atleast 4 or 5 stages of water purification will ensure that you get 100% pure clean and fresh water. The same may not be said for bottled water though. There is no guarantee on how the water has been purified and how many stages of purification it has gone through.
Consuming bottled water daily is costlier than investing in a water purifier just once.
How to determine which water purifier is the best for my home or office ?
Water in every area is different and the level of contamination is different too. Contaminants that are larger than 2 microns are known as TDS or Total Dissolved Solids. For water to be safe for consuming this TDS should be less than 500 ppm. Normally tap water can have TDS anywhere between 1000-3000 ppm. Consuming this water can cause many health issues and diseases. Water that has presence of high TDS also tends to have poor taste. Thus it is vital that this TDS be fixed. Once the TDS of the water is determined, you can pick the right type of water purifier with different technologies. TDS can be checked at home or by the company from who you wish to purchase the water purifier.
What are Total Dissolved Solids or TDS in Water ?
TDS can be referred to as the concentration cations and anions ions that are positively charged and negatively charged respectively. It is made up of some organic matter and inorganic salts. Some examples of inorganic salts present in the water that are cations are magnesium, calcium, sodium and potassium. Some examples of anions present in the water are chlorides, carbonates, sulphates, bicarbonates and nitrates.
What is the acceptable quality of drinking water ?
The Bureau of Indian Standards deems water containing TDS < 500 ppm to be the desirable quality of drinking water. However, not each one may have access to this quality of water or it may not be available to them. So, in this case, the level can be compromised upto 2000 ppm.
What is pH Level in drinking water ?
The pH level of water reveals how alkaline or acidic it is. The pH scale of water can be anywhere between 0-14 and 7.0 is considered to be normal pH level of the water. If the level of pH in water is more than 7 then it is considered as alkaline but if the pH level is less than 7 then it is acidic. It is because of the contaminations that the water tends to get acidic. Drinking acidic water causes many health issues such as digestive problems, weight gain, poor immune response, vulnerability to diseases and more.
Also Read this Best UV Water Purifier for home
Is it ok to store water in the purifier’s storage ?
Once the water is purified, it should be stored in clean glass or steel made containers. The storage containers ensure that you have access to water quickly. But to be on the safer side you must replace the stored water every two days. If yours is a big family, then it may not be an issue, but if you use less water, then try and use it more frequently. The storage filter tends to breed microorganisms and which is why the water in the filter should be regularly used and replaced. However, there are many brands that now claim to prevent the breeding of microorganisms when the storage container.
Does RO technology of water purification improve the taste of water ?
Several individuals think that the purification technologies of the best water purifier remove all the essential minerals present in the water and make it bland. However, advanced technologies have now made it possible to remove the harsh minerals from the water and retain the good ones in it. This results in tasty drinking water.
Can you conserve the rejected water from the purification process ?
When the water goes through the process of Reverse Osmosis for purification a lot of water is rejected in the process. About 70% to 80% of the water is rejected. This is why people staying in areas with limited water supply are usually sceptical in using RO water purifiers. But with development in technology these days there are companies and manufacturers that have come up with features that save this water in a separate tank. This water can be used for other household purposes.
Are water purifiers high in maintenance ?
In order to get safe and clean drinking water, it is significant that the filters of the purifier are replaced timely. The changing of filters depends on the usage or the litres of water purified. Every brand has their own limitation and they come with LED displays that alert the users for service and maintenance. All companies have a team of service providers who come and service the purifiers and if required change the filters.
How much time does it take for a water purifier to purify water ?
A RO water purifier will usually take between 2 to 3 hours to fill 10 litres storage tank. Since the process of Reverse Osmosis is time-taking a storage tank is always provided with the water purifier. If there is no storage tank you will have to wait atleast 10 minutes just to drink one glass of purified water. There are brands that have come up with faster technologies and boast of cleaning upto 25 litres of water in just an hour.
Is the UV process in water purifiers harmful for us ?
UV or Ultraviolet treatment used in the purification of water is completely safe. Neither does the process alter the water composition nor does it use any type of harmful chemicals. A UV-C light is used to disinfect or kills the germs present in the water. The light when directly exposed to the humans is harmful for them, but since they are located within the water purifiers, you are safe. This UV-C bulb kills the protozoa present in the water. This way of treating the water ensures that all types of germs and bacteria are killed.
How many technologies of water purification should a water purifier have ?
There are different technologies of water purification that have come up recently. Here are some of the most common ones:
- Reverse Osmosis or RO
- Ultraviolet or UV
- Ultrafiltration or UF
- Activated Carbon
- Electrodeionization or EDI
- Ion Exchange
- Sub-micron Filtration
What is sub-micron filtration ?
The sub-micron filtration process is an advanced technology that uses a form of spiral wound hollow fibre or flat sheet micro-porous membrane to purify the water. The pores range anywhere between .1 to 10 micrometres and this helps in eliminating cysts, asbestos, particulate, lead, mercury, and various types of bacteria. It is this micro-porous membrane that filters in a very specific way. This also helps in retaining all the good minerals in the water. The more accurate the membrane is, the better the process of filtration is.
How many types of water purification technologies should a water purifier have ?
Every water purification technology has pros and cons. For instance, in the UV technology of water purification, the process kills all pathogens, bacteria, and viruses but fails to remove them from the water. UF technology, on the other hand, blocks the bacteria and viruses in the filter and removes them too. Every technology has its own set of benefits however, each in order to get the best quality of water, a water purifier must have more than one type of water cleaning technology. You must pick the best water purifier for home use that offers RO + UV +UF and more technologies. The more the stages of water purification a water purifier has, the better the quality of water.