ឧបករណ៍វាស់ទឹកក្រោមដី


Warning levels refer to the operation of suction type hand pumps, e.g. VN6, that become low yields, or cease functioning from water levels 6m – 7m below ground level.

These pumps are the principle water source for an estimated > 1.5 million people in Cambodia, particular during the dry season.

ឧបករណ៍វាស់ទឹកក្រោមដី