Thanks for reply Zeus MK but we already have water supplier and now my parents want to buy Water Purifier,Filter to get rid of that long run kharcha of buying water. any other suggestions?
you are welcome.
actually water purification involves a lengthy cleaning, multiple filtration and mineral addition process which can not be replaced by an home based filter.
more over the local water supply that we get in our home is not clean at all, there are many places where the water is contaminated by line breakage that causes polluted water to mix up with the supply making it unfit for drinking or consuming, at many places i have heard sewage lines getting mixed up with normal supply because of maintenance activity or other activities that causes the lines to break and mix, what's more shocking is that most of the people still use that water and they are not aware of such a disaster.
i don't know about other plants but in our plant we have water supply from customized boring to ensure that the water is clean even before the filtration process begins,
if u have boring in your home and the water from it is normal rather than salty then u can consider buying a filter but a good one is must to attain filtered water that is drinkable but it is going to be expensive.