Technologies available in Appropriate Technology Centre
Rainwater Harvesting Technology
     1)  Rainwater Harvesting through Ferro-Cement Technology:      
Roof Rain Water Harvesting provides a lot of scope and potential for long-term use of water on site at water scarcity areas in the State both for domestic and agriculture use. It is cost effective tool for meeting out the water demand during the lean periods. There is sufficient rainfall annually to permit the collection of adequate amounts of water on the roofs available in the State. For the rainwater harvesting the storage tank can be constructed from various technologies namely; brick masonry, stone masonry, Synthetic Polymers, Reinforcement concrete and steel etc. Upto 5m3 capacity ferro-cement tanks can be constructed which is an immediate solution for the collection of Roof Top Rainwater.

Under Construction Ferro_Cement Tank

Under Construction Water Tank

Constructed Ferro-Cement Tank
     2)  Rainwater Harvesting through LDPE Ponds:
In drought prone areas Rain water can be collected by constructing LDPE Ponds in the farmer’s fields for use in agriculture fields. A simple technological intervention before the onset of the monsoon can rectify the problem. Lining the pond or tank with a layer of low density Polyethylene film (LDPE) is simple techniques which conserve water and ensure better water management in areas of limited water resources.
The Appropriate Technology Centre, Sundernagar is propagating this technology by construction of LDPE Lined Ponds on demonstration basis at water scarcity areas for the benefit of the farming communities in the State. The programme is being implemented through Block Development Officers / Panchayats in the State.
    
Low Cost LDPE Pond

Low Cost LDPE Pond

Low Cost LDPE Pond