What is the total depth consideration for the torpedo sand in a raised filter bed?

The total depth consideration for torpedo sand in a raised filter bed is 12 inches. This specific depth is critical for ensuring adequate filtration and treatment of wastewater in septic systems.

Torpedo sand is utilized for its excellent drainage properties and the ability to facilitate the percolation of effluent from the septic tank. The 12-inch depth is designed to provide sufficient volume to contain the effluent while allowing for effective aeration and biological breakdown of contaminants. Having an adequate depth also helps maintain a suitable environment for microorganisms that are essential in the treatment process.

Inadequate depth could compromise the system's performance, leading to issues such as poor filtration and potential contamination of groundwater. Therefore, following the recommended 12-inch depth guideline is essential for the functionality and compliance of a septic system.