Why should heavy machinery be avoided over a drain field?

Heavy machinery should be avoided over a drain field because it can compact the soil and damage the field. Drain fields are designed to allow wastewater to seep into the soil, where it is naturally filtered and treated. When heavy machinery operates over this area, the weight can compress the soil particles, reducing the pore spaces that allow for water movement. This compaction can lead to inadequate drainage and potential system failure, as the treated effluent may not be able to move through the soil efficiently, thus harming the overall functionality of the septic system. Proper drainage is crucial for the effective treatment of wastewater, making this consideration essential in maintaining the longevity and efficiency of the septic system.