In a dug well, from where does the water flow into the casing?

In a dug well, water typically flows into the casing from the sides. This design allows water from the surrounding aquifer to enter the well. The casing is installed below the ground level, and the sides of the well are open to the aquifer, which means that the water from the surrounding soil or rock formations seeps into the well through the walls. This natural flow contributes to the overall water accumulation within the well.

The casing itself is meant to protect the water from contamination and to provide structural support to the well. Thus, the correct understanding of water flow into a dug well is that it occurs primarily through the sides rather than the bottom or top.