- Add 400 ml tap water to graduated beaker.
- Raise volume to 500 ml with soil.
- Allow sample to sit for 15 minutes.
- Thoroughly stir sample.
- Allow sample to sit for 15 minutes.
- Add soil/water mixture to the machine beakers and raise volume to 1800 ml.
- Open valve to air drills and allow to stir for 15 seconds.
- Dump samples 15 seconds after stirring (through a #20 over a #60 sieve).
- Collect what is caught on the #60 sieve.
