In 1908, at the beginning of the 20th century, in the suburbs of Kuwait City, the capital of Kuwait, seven brothers were tired of the local brackish water and tried their best to improve the water quality and obtain drinking water with better taste. In the environment at that time, when technology was not yet developed, they accidentally discovered that the taste of burned trees (charcoal) improved after soaking in brackish water, and then tried again and again to improve the water quality by burning charcoal. The specific method is to bury wood charcoal, gravel, and gravel in layers while digging the well. After a little precipitation, the taste of water from the landfill layer will be significantly improved. That was it then. The most effective water well filtration system.