Will an Unplastered Concrete Pool Erupt? Understanding Winter Risks

It is extremely unlikely that an empty, in-ground concrete pool would pop out of the ground due to being unplastered over winter. In-ground concrete pools are designed to withstand significant hydrostatic pressure from the surrounding soil, and an empty pool exerts relatively little pressure on its walls. The primary concern with leaving an unplastered concrete pool empty over winter is the potential for structural damage caused by freeze-thaw cycles, not the risk of it popping out of the ground.