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In Nepal ,although the availability of HDPE tank of Capacity 10000 liter is available in urban areas like Kathmandu city, Biratnagar, Birjung ect. But Main challenging is for transport in rural communities. some problem in HDPE tank big in size, difficult to installation and can be affected by Wind also and community people will realized this is the temporary solution to storage water in their system. When constructed fero cement, they realized their system are now permanent. due to easily construction with less materials, can be constructed by local workers, can be constructed in different size due to availability of land and easy to operation and maintenance and less risk by leakage due to outer activities( HDPE tank can borke down by making hole even by children during playing), so most of rural setting, most common ferocement tank. Thank you