What is the most effective method discovered for running a percolation test?

Making at least three tests, and preferably six, is considered the most effective method for running a percolation test for several reasons.

First, variability in soil composition and moisture content can significantly affect percolation rates. By conducting multiple tests, you obtain a better average value that accounts for any inconsistencies in the soil's percolation capability. This is crucial for reliable soil assessment, especially when making decisions related to drainage or septic system design.

Additionally, multiple tests help identify anomalies that could skew results. For instance, if one test yields a significantly different result compared to others, it might indicate an anomaly in that specific location that should be further investigated. The redundancy provided by multiple tests strengthens the robustness of your findings.

Whereas performing just one test may yield an answer, it does not offer the reliability necessary to make informed decisions about site suitability. Similarly, while standardized test methods are important for consistency, they still require multiple iterations to ensure that the findings are representative of the site as a whole. Conducting tests only in dry conditions may limit accurate assessments, as soil structure can be different when saturated or during wet weather. Therefore, conducting multiple tests is the best approach to obtain a comprehensive understanding of soil percolation characteristics.