Device That Turns Dirty Water Into Clean Water Without Electricity

Tired of Drinking Dirty Well Water, Kerala Man Built No-Electricity Filter to Purify it. Water is essential for life, but many people in India struggle to access clean and safe drinking water. One such person was Stanley Jacob, a resident of Kothad, Ernakulam, who lived in an area surrounded by contaminated water from the river Periyar. He and his family had to boil water and wait till the dirt settled down to drink it. They also had no option but to use the same dirty water for bathing, washing clothes and utensils.


Stanley, who works at a fertiliser company, decided to use his interest in innovation to solve this problem. He researched and developed a water filter that purifies dirty water without electricity for both commercial and industrial use. He launched his company, Dubhe Richus, in 2006 and has since installed his filter in many households, schools, hospitals and factories.

How the innovation works

The water filter works on the principle of gravitational force and uses natural stones as the filtering medium. The stones are processed in a crusher and arranged in different layers inside a tank. The dirty water is poured into the tank from the top and passes through the layers of stones, which trap the impurities and bacteria. The clean water comes out from the bottom of the tank and can be stored in another tank or used directly.


The filter does not require any electricity or battery to run. It also does not involve any chemicals or membranes that need to be replaced frequently. The only expense is the initial cost of the device and its installation, which starts from Rs 25,000. The device comes with a warranty of five years and requires minimal maintenance if cleaned properly from time to time.

The benefits of the filter

The filter can purify any type of water except salty water. It can handle turbidity up to 500 NTU (Nephelometric Turbidity Units) and reduce it to less than 5 NTU. It can also remove iron, manganese, fluoride, arsenic and other harmful substances from the water. The filter can produce up to 10,000 litres of clean water per day depending on the size and capacity of the device.


The filter has many benefits for the users and the environment. It provides safe drinking water that can prevent waterborne diseases and improve health and hygiene. It also saves money on buying bottled water or using other expensive methods of purification. It reduces the dependence on electricity and fossil fuels that contribute to greenhouse gas emissions and climate change. It also prevents the wastage of water that occurs in other filtration systems that use backwashing or flushing.

The impact of the filter

Stanley has installed his filter in more than 500 locations across Kerala, Tamil Nadu, Karnataka and Andhra Pradesh. He has received positive feedback from his customers who have noticed a difference in the quality and taste of their water. He has also received recognition from various organisations and media outlets for his innovation.


Some of his notable installations include:

  • A school in Kothad that provides clean drinking water to more than 1,000 students and staff.
  • A hospital in Kochi that uses the filter for dialysis machines and other medical purposes.
  • A factory in Coimbatore that uses the filter for cooling towers and boilers.
  • A resort in Munnar that uses the filter for swimming pools and spas.

Stanley hopes to expand his business and reach more people who need clean water. He also plans to develop more products based on his filtration technology such as portable filters, rainwater harvesting systems and solar-powered pumps.

He says his motivation is to make a positive impact on society and the environment through his innovation. He believes that if a major war were to happen in the world in the next 50 years, it would be for clean water and air. He wants to prevent that by providing a simple and affordable solution for water purification.

Stanley Jacob is an inspiring example of how one can use their passion and creativity to solve a pressing problem in their community. His water filter is a remarkable innovation that provides clean and safe water to thousands of people without using electricity or chemicals. His filter not only improves the health and well-being of his customers, but also protects the environment and conserves natural resources. He deserves applause and recognition for his contribution to society and the planet. He also shows us that anyone can make a difference with a simple and affordable solution if they have the determination and vision to do so.

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