The compost tank was built of concrete blocks. The tank was sealed on the sides and the bottom by a thin coat of cement. Apricot leaves, eucalyptus leaves and plum leaves are collected to make compost. After the compost tank was built, these materials were put in. The fermentation process is started by adding liquid manure from the Bio-gas unit.
Liquid manure is added little by little since only small amounts of moisture works well.
A boy mixes compost materials thoroughly. Plastic sheet is put on the compost materials and compost tank to maintain the anaerobic conditions. The compost temperature is measured daily. When the temperature is stable, the compost is ready. Farmers were trained how to make compost twice.