Explanation: Soak pit: ● A soak pit, also known as a soakaway or leach pit, is a covered, porous-walled chamber that allows water to slowly soak into the ground. ● A soak pit is a covered, porous-walled chamber that allows water to slowly soak into the ground and also known as a soakaway or leach pit, and the pre-settled sewage from the septic tank is release to the underground chamber from where it infiltrates into the neighboring soils. ● So soak pits are preferred where the soil is porous in nature.