What does the non-buoyancy requirement in high groundwater areas ensure?

The non-buoyancy requirement in high groundwater areas is primarily focused on ensuring that the septic tank remains stable and does not float due to groundwater pressure. High groundwater levels can exert significant upward force on submerged structures, potentially leading to the tank lifting from its intended position. If a septic tank floats, it can disrupt the positioning of the system, cause damage to the plumbing connections, and can lead to failure in the overall septic system function. Therefore, by adhering to the non-buoyancy requirement, the installation ensures the structural integrity and proper functioning of the septic system even in challenging environmental conditions.