Most of the time, tap water is not safe for drinking due to heavy industrial and environmental pollution. Toxic bacteria, chemicals and heavy metals routinely penetrate and pollute our natural water sources making people sick while exposing them to long term health consequences. Municipal water supplied for drinking is also not safe due to poor pipeline quality, parallel sewage pipelines, low maintenance, etc. Contaminants range from naturally-occurring minerals to man-made chemicals and by-products and microbiological organisms like bacteria, viruses and other pathogens, which cause serious diseases like Gastro-enteritis, diarrhea, paratyphoid, dysentery, etc.