My pump runs fine but the borewell gives very little water, what is going on?

If the pump runs but only a thin flow comes out, the problem is usually one of a few things. Most common, the water level in the borewell has dropped below or near the pump, often in summer or after years of falling water table, so the pump sucks air and gives little water; the fix may be to lower the pump deeper if the bore has water lower down, but get a technician to check the water level first. Other causes are a worn pump that has lost capacity, a partly clogged foot valve or strainer, an air leak in the pipe, or the bore itself yielding less because the aquifer is depleted. A blocked or scaled delivery pipe also cuts flow. Have a pump technician check the water level in the bore and the pump condition before you spend money, because lowering a pump into a bore that has simply run dry will not help. For the longer term, recharge and water saving methods like drip reduce how hard you draw the bore. Confirm the diagnosis with a borewell technician.