PB2
Testing the infiltration capacity of the soil is a specialist job.
For the infiltration of rainwater or wastewater the infiltration capacity
has to remain high. Using the right
equipment this is fairly easy to determine.
However, for storage dams, wastewater holding ponds and oil terminal
linings the infiltration capacity has to be extremely low.
Measurements of infiltration well below the evaporation rate is much more
difficult. Also the lateral
capillary spreading has to be accounted for. This can be done with a dual ring
infiltrometer. When in clays the
infiltration may only stabilise after several hours or days: an automatic
filling device is indispensable (pictured).
