Now that we have determined our soil type, let’s see how wellthe soil holds water. We use the “Subsoil Drainage Test.” Dig a hole about 12 inches deep. A post-hole digger or a shovel works great. Fill ...

Clay subsoil around Little Lake Butte des Morts has the consistency of creamy peanut butter Weight of fill material pushes water up corrugated plastic to a drainage blanket New method was used ...

Poor drainage results from two factors ... There is a big difference, however, in red clay subsoil and red clay fill. In almost every yard the grading consists of a combination of cut and fill.

"You can have some areas where you can have fairy free drainage," he said. "Then you can have areas where you can have this dense, thick, impervious layer of unstructured clay under the subsoil ...

Later as a horticulturist, I learnt that drainage was not only about handling surface water after rain, it had as much to do with the way water moved below the surface. Without good sub-soil ...

What happens to water once it hits the soil surface depends on factors such as topsoil and subsoil depth and texture, effective roots zone and waterholding capacity. “Surface drainage is very ...