Are you planning to buy a NON-RO, Non-Electric Gravity Filter after RO BAN in India???
Water needs to go through filtration if the source of supply is an open
well or bore well. In addition, most of us don’t prefer to drink water directly
from the tap even if the water is being treated through the municipal water
treatment facilities' city water supply and treatment systems. When we asked
about the probable reasons, it come up with a list of actual valid points.
According to local people, there may be chances of leakage from water supply
pipes and sewage or storm water mixing into it. Other possible reasons may be
the corrosion in pipes which led to the high iron content in water as well as
residual chlorine amount in water put by the Municipal department as a
disinfectant or the reason may be sedimentation in pipes. The reasons are a
long list.
In such circumstances, people unknowingly go for Reverse Osmosis filters
available on market. The process followed in Reverse Osmosis is considered as the
best and the most effective method followed all around the world in a
centralized facility, decentralized facility, industries, health care, and also
for household purposes, but the recent RO BAN by National Green Tribunal, India
make people about RO use and its disadvantages concerning its effect of Total
Dissolved Solids in drinking water.
The RO ban not only aware people of essential parameters required in
water but also creates panic to find the best alternatives to RO.
We have tried to find some of the best RO filter alternatives with
GRAVITY FED present in the market as per the technology used, energy consumption,
capacity for a particular household, and water quality parameter retention like
that of desirable TDS. In addition, the devices are more focused on removing
harmful organic and inorganic materials, heavy metals, ions and salts in water,
and pathogen organisms.
Some selected Gravity filters are:
Pros:
The gravity-driven hollow fiber membrane filtration process is used in
the TATA Swach Cristella Advanced Filter. The capacity is 18 liters which includes
9 liters of clean and pure water storage in the lower container and 9 liters of
storage in the upper container. The filter can be used on 5 to 10 members of the
family without putting more stress on it.
The food-grade material body meets the log reduction value for pathogens,
bacteria, and viruses as per the USEPA guidelines. The cartridge is sustainable
for up to 6000 liters, which can maintain a pH range of 5.5-9.0 and TDS up to
1500 ppm (parts per million). In addition, the deposition of dead or alive
microorganisms is prevented by the process of anti-biofouling with a high-water
discharge rate of 4 to 5 liters per hour.
Cons:
You have to put a regular watch for deposition of sediments in the upper
container and need to fill it carefully as per capacity. Must be an adult’s
work.
Pros:
The India-origin purification system processes drinking water through UV
and UF (Ultra Violet + Ultra Filtration). The UV rays are passed into the
hollow UF membrane to filter dead or alive microorganisms, organic matter,
cysts, and bacteria.
The purifier is an easy-to-go purifier as it is the wall-mounted type
with very less use of electrical energy and is suitable for both
groundwater/well water and municipal water with a purification capacity of 60
liters per hour and 7 liters storage capacity. Still, you need to check the TDS
level of your supply water before choosing one.
Cons:
You will not be alarmed by candle
change, so write somewhere the date to replace or clean the candle or filter
given. It is not a DIY filter, it needs proper installation by a skilled man.
Purella Gravity UF Portable Non-Electric Water Purifier with 3 Stage
Filtration System
Pros:
The made-in-India non-electric-DIY-3 stage filtration is easy to install
and maintain with an upper container capacity of 11 liters and 9 liters of the
lower container. The combinations of 5-micron sediment filter, activated carbon
filter, and ultra-filtration membrane filters 99.99% of dead and alive
microorganisms and retains required salt, minerals, and dissolved solids.
Cons:
The filter suggests you go for a TDS test for your supplied water before
installing it. So, have an idea about TDS. You need to have a watch during
filling of upper chamber as per capacity and sedimentation in upper chamber.
KENT Gold Optima Gravity Water Purifier- UF Technology Based-Non-Electric
& Chemical Free
Pros:
The Non- electric Gold Optima gravity filter uses a 0.1 microns hollow
fiber ultra-filtration membrane with nano-silver carbon having an expected life
of 4000 liters. The filters assure you an unbreakable food-grade plastic tank
that is free from chlorine, bromine, and iodine chemicals to provide pure and
healthier water. The tank has a total capacity of 10 liters which includes 5
liters of raw water and 5 liters of purified water with a filtration rate of
0.31 liters per minute.
Cons:
The system is suitable for low TDS supply water as you can’t control the
level of TDS through the filtration technique.
Watamate Drinqo Gravity Water Filter 6-stage Purifier for Home with
Super Mineralization
Pros:
The six-stage ultra-filtration technique involves a ceramic water filter,
activated carbon with nano silver, WSM-300 sterilizer, silica sand, and mineral
sand. The filter claims Super mineralization with Germanium which absorbs
harmful heavy metals, toxins, odors, and organic and inorganic impurities. The
Germanium stone release 20 kinds of ionized minerals to remove and supply
required minerals.
The strongly built food grade ABS plastic-built water purifier is
chemical-free, like from chlorine, bromine, or iodine.
Cons:
You can go for a direct filtration but have a watch, it’s not a kid’s
work. Have a watch on deposition in the upper container and score the same
carefully.
Bnova Snova 4 Stage Water purifiers -Non-RO-Non-Electric
Pros:
The filter was developed by BARC, Govt of India with a 0.01-micron
ultra-filtration membrane. The low-maintenance and DIY filter acts as the best
alkaline and active copper purifier at home. In addition, the filter maintains
alkalinity, antioxidant level, and anti-bacterial property keeping blood and
nerve cells healthy. It can provide you with the chemical-free purest form of
water up to 20 liters per hour.
The brand has a long life of 21000 liters of water in the form of collagen,
a protein that makes up bones healthy.
Cons:
The filtration is not the DIY type. You have to take proper care while installing
with a skilled man. Remember the next date to change or replace the filter
media or candle inside it. Have a watch on TDS level.
Pros:
The 16 liters filter
follows the FACT filter media which includes Fibrillated-Adsorbent-Cellulose-Technology
of filtration. The fibers have the proper structure to adhere to the dirt with
maintaining the overall pressure, capacity, and clogging.
The filter brings
Indian tradition to you with the copper storage container along with its
natural benefits like antimicrobial properties, improves digestion, and reduces
acidity and toxins in the body.
Cons:
The filter media
needs to be replaced after almost 1500 liters of purification. The capacity is
low. The cleaning of cupper containers can be tough as deposition will occur on
every alternative day.
