Demerits of Tank Irrigation

♤ Many tanks dry up during the dry season and fail to provide irrigation when it is needed the most.

♤ Silting of the tank bed is a serious problem and it requires desilting of the tank at regular intervals.

♤ Much water is evaporated from the large expanse of shallow water and is thus not available for irrigation.

♤ Lifting of water from tanks and carrying it to the fields is a strenuous and costly exercise which discourages the use of tanks as a source of irrigation.