Assessing water infiltration
Organise equipment
and pace out to the
monitoring point.
1
Use the board and
hammer to firmly
hammer the infiltrometer
tube into the ground. It
needs to be level and a few
centimetres into the ground
to seal the tube.
4
7
Wait six minutes.
Measure by how many
millimetres the water
has dropped. Multiply this
result by 10. This will be the
infiltration rate in millimetres
per hour (mm/hr).
8
2 Avoid obvious cracks in
the soil surface.
3 Use shears to cut
vegetation if required.
Position the ruler inside
the tube against the
edge.
5
Pour water from the
bucket into the tube
until near the top. Avoid
pouring water directly onto
the soil surface. Pour it onto
an open hand or through
cheesecloth onto the soil.
Working quickly, note the
depth of water on the ruler.
6
Score the water infiltration
rate using the table opposite.
RASH MANUAL - 15