What is the spacing between the two rows of holes in collection lines?

The correct spacing between two rows of holes in collection lines is typically 120 degrees. This spacing is essential for ensuring adequate water flow and distribution throughout the septic system. By having the holes spaced at this angle, it allows the effluent to be effectively collected from the surrounding soil, optimizing the absorption process and preventing any potential clogs that might occur with narrower angles. This design also promotes even distribution of wastewater across the filter area, enhancing the overall efficiency of the septic system.

Understanding the importance of this spacing helps in designing a septic system that performs effectively and minimizes maintenance issues, leading to better long-term functionality of the system.