Water Purifier FAQs

Here we have jotted down some frequently asked questions buyers may have, when they are looking to buy a water purifying appliance. 

1. Which purifier is best for home?

For homes you need to choose a purifier that has a package of eco-friendly purifying system, has a reverse osmosis membrane, has copper storage tanks, offers ultraviolet technology and has a micro filtration system.

Eco-friendly technology will carry out efficient purification causing minimal wastage. The reverse osmosis membrane ensures 98% clearance of pollutants that may cause harm, and the micro filtration (MF) will ensure double filtration. Ultraviolet radiation kills any chances of bacteria and viruses multiplying and the copper storage tanks helps this as well.

2. What is RO purifier?

Reverse osmosis, commonly referred to as RO is a purification method that uses an applied pressure to isolate water molecules from their mixture with contaminant particles, through a semi-permeable membrane. This membrane is known as the reverse osmosis membrane.

3. Is UV water purifier safe?

The ultraviolet light radiation is incredibly effective, since it acts as a germicide. The UV radiation prohibits the bacteria from multiplying and spreading further water-borne diseases like cholera, typhoid and dysentery.

4. Is RO water harmful?

When water is purified through a reverse osmosis membrane, the water is basically dead. The partially permeable membrane only lets water molecules pass through, and blocks out even microscopic particles.

This also blocks out essential vitamins and minerals like calcium, magnesium, and potassium. So, the water is neither harmful nor helpful – it is just plain and clean water.

There are various other ways to include the minerals and vitamins in our diet, by eating more fruits and vegetables or taking supplements.

5. Is UV better or RO?

In terms of purification, reverse osmosis technology is better than ultraviolet radiation. However, UV radiation is very effective, but reverse osmosis purification systems contain four to five stages. The water is pre-filtered and post-filtered. Also, the RO systems have easier maintenance.

6. How to maintain a water purifier?

To ensure the maximum potential of the water purifier is utilized, a few things need to be done. The filters inside the purifier and the RO membrane need to be replaced annually.

The pipes and storage tanks also need to be sanitized. A check-up can be done at regular intervals to see if any replacement is necessary.

7. Do water purifiers consume a lot of electricity?

Houses use water purifiers about five hours each day and consume about 25 to 60 watts of power per hour. So, they will not result in a hefty electricity bill at the end of each month.

8. When should you switch off water purifiers?

Water purifiers can be turned off during initial setup or while cleaning them. They should also be turned off during sudden shifts in water temperature.

However, they should not be turned off every night since they are designed to perform continually. So switching them off might harm the individual parts.

Water Purifier Buying Guide for Bangladesh

Water quality

The TDS level, which is the total dissolved solids level, needs to be figured out. If the source of water has TDS levels below 500 ppm, the water is drinkable. If the levels exceed 1000 ppm, the water is considered contaminated.

Depending on the quality of the supply of water, the purifying system needs to be chosen. Water filtration using RO (Reverse Osmosis) technology is suitable for water with a TDS level of greater than 500ppm.

RO membrane purifies water by filtering heavy metals, particles, and minerals through semipermeable membrane. If the TDS level is less than 200 ppm, UV (ultraviolet) filtering can be used to eliminate contaminants while keeping important minerals.

Reserve tank capacity

For a family under 4 members, storage of 5 to 8 liters is recommended. For families with 4 to 6 members, storage of 8 to 10 liters is recommended. For families with 7 or more members, a water purifier with at least 10 liters of storage capacity is essential.

Purifiers with several filtration systems

It is better to be safe than sorry. So, ensuring the best possible quality of drinking water should be a priority. Considering Bangladesh’s water supply to be contaminated in majority of the densely populated areas, purification systems with more filtration stages must be chosen. So the perfect choice would be reverse osmosis (RO) water purifiers.

At last, Since Bangladesh is a fairly hot and crowded country, and families are mostly never less than four members, it is safe to say that people will prefer water purifiers with higher storage capacity, and more advanced technologies, since the water has a higher chance of contamination.