1. jar with sand silt clay portions of soil sample settled out

    Image from PreparednessMama.com

    Fill a straight sided jar 1/3 with soil
  2. Add water until almost full
  3. Add 1 tsp dishwasher soap or water softener
  4. Shake and let settle
  5. Mark sand depth at 1 min.
  6. Mark silt depth after 6 hours (or by color/texture change with clay at 24 hr)
  7. Calculate clay by difference (or measure at 24 hours)

Posted June 2021