Maksavalu

Maksavalu is a type of overshot or undershot water harvesting system commonly used in rural areas of India and Sri Lanka. This traditional form of water collection and storage allows communities to harvest and conserve rainfall, supplementing their drinking water needs during times of drought or scarcity.

A maksavalu typically consists of a single chamber or tank built into a large rock or constructed from stone or brick masonry. The structure is designed to allow water to flow in from the top and overflow into a lower chamber or collecting area. This clever design takes advantage of gravity, reducing the need for energy or artificial lift in the water collection process.

In areas where rainfall is seasonal, maksavalu systems provide a reliable and low-maintenance means of collecting and storing water for irrigation, drinking, and other household purposes. The collected water is typically clear and free of debris due to the natural filtration effect provided by the collection process.

Maksavalu systems have been in use for centuries, with some structures dating back to ancient civilizations. Owing to their simplicity and effectiveness, these water-harvesting systems continue to play an important role in sustaining rural communities, particularly in regions with unpredictable or limited rainfall patterns. Maksavalu's adaptability and resilience illustrate the resourcefulness of traditional engineering practices in arid and semi-arid environments.