Have you ever wondered where does all the clean water come from whenever you turn the tap? We all know there are a million ways in which thousands or even in tens of thousands gallons of water is being wasted worldwide and even though the usable water on this planet is in a minimal percentage, we still get clean water every day. Surely there is not an unlimited supply of water available on this planet, the huge cleaning and filtering plants set up by the government keep providing us with clean water on a daily basis. Filtering the dirty water and making it usable is not an easy task at all. It requires a lot of concentration and monitoring of the entire processes to make sure there is no contamination in the water and that it is fit for human use.

The first step begins by fitting an underground suction pipe in the drains that flow with the contaminated water from the city. The suction pipe is fitted with a liquid level indicator monitored by authorized personnel who keeps it open only until the required amount of water enters the storage tank. The storage tank is specially designed to contain a certain amount of water which is then released into the pipes leading all the way towards the filtration plants. As the water is passed on from the initial storage tank, it travels a long way to reach the plant where it will be passed from many filters and treated with the harmless chemicals to kill all the bacteria that have born in it while passing through the many sewerage pipes.

As soon as the water reaches the filtration plant, it is sent for a lab test where the number of impurities and bacteria is determined. In case there has been a mixing of some other chemical or hazardous material which cannot be treated, it is flushed out immediately and a fresh intake of water is initiated. When the water passes the lab test, the tank is opened for the water to reach the treatment plants to clean it. The water moves on passing through various stages of filters, gravel, sand and even chalk. All of these have absorbing properties and the filth is filtered only to let the water pass on. After the water is passed through many filters, it reaches the second last stage where it is chlorinated to kill all the bacteria that might have survived and it enters the final tank where it is measured with the ultrasonic level indicator. Measuring the amount of water which is available to be passed back into the city, a record is created to ensure that the quota has been delivered.