Best Water Purifier.
- Thread starter RKitect
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Plain water purifiers use Carbon and UV light to filter water.
RO is Reverse Osmosis and it basically uses a membrane through which the water molecules (and other essential minerals) diffuse to one side leaving the impurities on the other side (there are various stages involved though). It doesn't require electricity..
More info here :
Reverse osmosis - Wikipedia, the free encyclopedia
RO is Reverse Osmosis and it basically uses a membrane through which the water molecules (and other essential minerals) diffuse to one side leaving the impurities on the other side (there are various stages involved though). It doesn't require electricity..
More info here :
Reverse osmosis - Wikipedia, the free encyclopedia
Ok, from whatever experience I have in water Purifier I will give some advice.
The first question which newbies asked is "What water Purifier"
1. Reverse Osmosis
2. Reverse Osmosis with Graphite and micro filteration
3. Germ killing water purifiers (UV etc.,)
Now why do we need a purifier.
Well because water is dirty.
What depends on what "kind of dirty is water".
For example you may get chlorinated water where all germs are dead. However it tastes horrible and may contain Heavy metals/copper/calcium etc,. in it.
For example I got a water sample in Bangalore tested(Groundwater) and it had germs+copper+Calcium and other salts.
When we used to take a bath, the hair used to stand up due to deposits. Washing machines had these white stains.
For such water you need micro filteration to take care of all bacteria etc., and Reverse Osmosis to remove salts.
A simple aquaguard cannot do.
Then there are UV thingies. But I don't know how can they work. Water passes under UV light for less than 10 seconds(unless there is a dedicated storage). So if they expose water to hard UV for few minutes it will kill bacteria.
So what water purifier you need?
Well take a water sample, find a certified lab(every city has a few) and get your water tested.
You may get clean river water chlorinated, so you may be wasting money on purifier, or you may get contaminated groundwater, in which case you need the best.
Hope this helps
The first question which newbies asked is "What water Purifier"
1. Reverse Osmosis
2. Reverse Osmosis with Graphite and micro filteration
3. Germ killing water purifiers (UV etc.,)
Now why do we need a purifier.
Well because water is dirty.
What depends on what "kind of dirty is water".
For example you may get chlorinated water where all germs are dead. However it tastes horrible and may contain Heavy metals/copper/calcium etc,. in it.
For example I got a water sample in Bangalore tested(Groundwater) and it had germs+copper+Calcium and other salts.
When we used to take a bath, the hair used to stand up due to deposits. Washing machines had these white stains.
For such water you need micro filteration to take care of all bacteria etc., and Reverse Osmosis to remove salts.
A simple aquaguard cannot do.
Then there are UV thingies. But I don't know how can they work. Water passes under UV light for less than 10 seconds(unless there is a dedicated storage). So if they expose water to hard UV for few minutes it will kill bacteria.
So what water purifier you need?
Well take a water sample, find a certified lab(every city has a few) and get your water tested.
You may get clean river water chlorinated, so you may be wasting money on purifier, or you may get contaminated groundwater, in which case you need the best.
Hope this helps
victor4comp
Contributor
sumedhmumbai
Contributor
Eureka Forbes lower models suxx
for lower models
go for alfa UV purifiers.. only available through company repesentives and also there after sale service is good.. better go in for extended warrenty ie AMC...
u req that carbon before rains along with wool replace twice every yr else it dammm useless to have purifier in 1 st place
filter clean + uv tank clean = peace of mind
so long time AMC is good
Alfaa UV India
tel 56612300
mail sales@alfauv.com to call for there marketing guy
for lower models
go for alfa UV purifiers.. only available through company repesentives and also there after sale service is good.. better go in for extended warrenty ie AMC...
u req that carbon before rains along with wool replace twice every yr else it dammm useless to have purifier in 1 st place
filter clean + uv tank clean = peace of mind
so long time AMC is good
Alfaa UV India
tel 56612300
mail sales@alfauv.com to call for there marketing guy
Eureka Forbes RO Smart looks to be a good option if ur water quality is really bad. But most of these days due to stringent norms of municipalities water is pretreated. If u live in such an area where u get pretreated water, then all u need is AQUAGUARD ULTRA. this doesnt require electricity and uses nano filtration. Nano filtration is a better technique as compared to RO.
The RO membrane, with it's dense material makeup will allow certain low molecular weight(very small) particles to pass through it. Larger, heavier molecules cannot pass through the membrane and are left behind and flushed away. If the pressure applied to the input tap water is properly maintained, the osmotic pressure of the membrane is overcome and small portions of purified water begin to "squeeze" through the membrane.
You can expect gradually decreasing water purity from the first day---since the membrane is susceptible to chemical and bacterial action as well as water pressure, temperature and pH(water acidity or alkalinity).
So proper maintenance is essential and also tedious. Also u wont realise when the water quality deteriorates to unpalatable quality. Nano filter has no such problems. The only prob with this method is that filter gets choked. It is actually an advantage as even if the membrane is non functional bad quality water wont come out.
This will fit ur budget also.
Other option is to go for a simple charcoal water purifier. It is a time tested technology and has proven to be viable in most cases. more info out here: Carbon filtering - Wikipedia, the free encyclopedia
Simply put it is the unit with blue casing which is present in most old aquaguards. It is the first unit in old aquaguard filters. I dont know where it can be purchased separately. But that one unit in itself is quite adequate for normal water quality purification requirements.
The RO membrane, with it's dense material makeup will allow certain low molecular weight(very small) particles to pass through it. Larger, heavier molecules cannot pass through the membrane and are left behind and flushed away. If the pressure applied to the input tap water is properly maintained, the osmotic pressure of the membrane is overcome and small portions of purified water begin to "squeeze" through the membrane.
You can expect gradually decreasing water purity from the first day---since the membrane is susceptible to chemical and bacterial action as well as water pressure, temperature and pH(water acidity or alkalinity).
So proper maintenance is essential and also tedious. Also u wont realise when the water quality deteriorates to unpalatable quality. Nano filter has no such problems. The only prob with this method is that filter gets choked. It is actually an advantage as even if the membrane is non functional bad quality water wont come out.
This will fit ur budget also.
Other option is to go for a simple charcoal water purifier. It is a time tested technology and has proven to be viable in most cases. more info out here: Carbon filtering - Wikipedia, the free encyclopedia
Simply put it is the unit with blue casing which is present in most old aquaguards. It is the first unit in old aquaguard filters. I dont know where it can be purchased separately. But that one unit in itself is quite adequate for normal water quality purification requirements.
water purifiers again.
its monsoon time and time when almost all the local bodies start letting out muddy waters.
well there has been a indepth discussion in near past in this forums only, where is link?
http://www.techenclave.com/589217-post10.html
http://www.techenclave.com/590458-post18.html
i have pointed to the two posts that i made. the whole thread is informative and you can read that.
afterwards if you have queries you can put it up for discussion here.
its monsoon time and time when almost all the local bodies start letting out muddy waters.
well there has been a indepth discussion in near past in this forums only, where is link?
http://www.techenclave.com/589217-post10.html
http://www.techenclave.com/590458-post18.html
i have pointed to the two posts that i made. the whole thread is informative and you can read that.
afterwards if you have queries you can put it up for discussion here.
rahulkamath79 said:
well seems you have not read the contents of the thread i pointed to you.
infact there is nothing like the best in Water Purifier, it is decided depending upon your needs and your water source.
e-boiling is a marketing gimming Eureka Forbes have thrown to the general public so dont fall for it.
What an Uv purifies does is that it inactivates the biological impurities and renders the water safe for consumption.
Hi guys,
Went thru a lot of info finally have decided to buy an purifier using ultra filtration. now the question is which one. pls help me shortlist from the below mentioned.
1. Aquaguard ultra -
4 Stages
dunno about the membrane size.
Price- 7500
2. Dolphin UF Standard
2 stages , Prefilter and Membrane
Membrane - 0.01 micron ultrafiltration membranes(Referred from website)
Price- ??
3. Permionics -Pureflo
2 stages- PreFilter and Membrane
Membrane - 0.1 (Referred from a article)
Price-Rs 6000 appx
If u guys have used anyone of these pls advice which one to buy. Will the 4 stages in aquaguard be better? or is the membrane size more important?
Thanks
Went thru a lot of info finally have decided to buy an purifier using ultra filtration. now the question is which one. pls help me shortlist from the below mentioned.
1. Aquaguard ultra -
4 Stages
dunno about the membrane size.
Price- 7500
2. Dolphin UF Standard
2 stages , Prefilter and Membrane
Membrane - 0.01 micron ultrafiltration membranes(Referred from website)
Price- ??
3. Permionics -Pureflo
2 stages- PreFilter and Membrane
Membrane - 0.1 (Referred from a article)
Price-Rs 6000 appx
If u guys have used anyone of these pls advice which one to buy. Will the 4 stages in aquaguard be better? or is the membrane size more important?
Thanks
i am using permionics pureflo and you cant go wrong with it.
Basically Permionics is the only company in india manufacturing the UF membranes and every other company sources from it to make their own brand.
I am using it for more than 2 years and there are many installations in my group no one has single complaints.
Basically Permionics is the only company in india manufacturing the UF membranes and every other company sources from it to make their own brand.
I am using it for more than 2 years and there are many installations in my group no one has single complaints.
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