What is one potential advantage of utilizing pressure distribution in sandy soils?

Utilizing pressure distribution in sandy soils can indeed help avoid groundwater contamination. Sandy soils typically have high permeability, which allows effluent from a septic system to move quickly through the soil. Without proper distribution, this rapid movement can lead to an insufficient filtering effect, increasing the risk of contaminants bypassing the treatment process and reaching the groundwater.

Pressure distribution systems work by evenly spreading effluent across the soil, promoting better treatment as the wastewater passes through a larger volume of soil. This method increases contact between the effluent and soil particles, facilitating biological treatment and filtration processes. As a result, contaminants are more effectively broken down and removed before entering the groundwater, reducing the overall risk of pollution.

While other options present various considerations, they either do not directly relate to the primary function of pressure distribution or focus on aspects that are not as closely tied to groundwater contamination prevention. For example, preventing soil compaction is not a direct outcome of pressure distribution, and while cost efficiency and drought resilience can be considerations, they are secondary to the critical function of protecting groundwater quality.