I don’t understand how do wells work. Like, I’ve seen a lot of wells made of stone, so, if you dig a huge hole in the ground, how does water come inside the well? Like, I’ve seen a lot of movies where someone gets stuck in a well or something, and there’s always a rock bottom. So, how does water get inside the well?
In: Engineering
Most areas of land on earth have water in the soil. This water slowly flows towards a river or other body of water. This flowing water covers vast areas known as “aquifers”. If you drill down to the depth of your local aquifer (that depth is known as the water table) the hole you dug will begin filling with water from that aquifer. A well is that hole.
Modern wells use a solid well casing with a bottom made of gravel. The water will push up through the gravel in the bottom. and filter out any large contaminated like dirt and then it will be pumped to your house. Older style wells typically jusy line the wall with stones and no cement so the Ayer would flow in from the walls as well. However they would dig it deep enough that the dirt would settle out below the bucket. As cement was developed wells were reinforced on the sides and then the bottom was left as gravel much like a modern well.
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