peruskaivo
Peruskaivo is a Finnish term that translates to "basic well" or "foundation well." In its simplest form, it refers to a traditional well dug by hand, typically for obtaining groundwater for domestic use. These wells were common in rural areas before the advent of modern water supply systems. The construction of a peruskaivo usually involved excavating a hole in the ground until a sufficient water source, often an aquifer, was reached. The sides of the well were then reinforced, often with stones or logs, to prevent collapse. A simple pulley system might be used to draw water. The depth and diameter of a peruskaivo varied depending on local conditions and the intended use. Historically, peruskaivot were a vital source of water for drinking, cooking, and agriculture. While many have been replaced by more advanced systems, some still exist, particularly in older properties or as historical examples. The maintenance of a peruskaivo involved regular cleaning to remove sediment and debris and ensuring the water remained potable.