Availability of air escapes. Water fluctuation in the water-seal chamber. Quantity of vacuum. Drainage volume and type.
If natural drainage systems are inadequate, install artificial ones. Consider an inlet receptacle or a channel drain, collect water where feasible, and extend your drainage systems beyond your planting plots.
Provide general information, including pipe length, diameter, and ownership, and describe the nature of the incident and its impact; Capture photographic evidence and add detailed notes; Document the process and results of your labour.
Precipitation: The quantity of precipitation that descends in the watershed as rain or snow is by far the most influential factor on streamflow. However, not all precipitation within a watershed travels out, and a stream will typically continue to flow even when there is no direct runoff from recent precipitation.