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→Making measurements=
# If the soil contains considerable amounts of silt or clay, and certainly for any soil with “clay” as part of the texture description, the test holes should be pre-soaked before proceeding with the test. Pre-soaking is accomplished by keeping the hole filled with water for 4 hours or more. The water should be added carefully and slowly to avoid disturbing the soil (including the sidewall soils). The test should be carried out immediately after pre-soaking;
# If the soil contains considerable amounts of silt or clay, and certainly for any soil with “clay” as part of the texture description, the test holes should be pre-soaked before proceeding with the test. Pre-soaking is accomplished by keeping the hole filled with water for 4 hours or more. The water should be added carefully and slowly to avoid disturbing the soil (including the sidewall soils). The test should be carried out immediately after pre-soaking;
==Making measurements===
===Making measurements===
# To undertake the test, fill the test hole (the accurately sized test hole) with water. The water should be added carefully and slowly to avoid disturbing the soil (including the sidewall soils). When the water level falls anywhere below the 27.5 cm mark, refill the hole to the top. No recording of time needs be done for these 2 fillings.
# To undertake the test, fill the test hole (the accurately sized test hole) with water. The water should be added carefully and slowly to avoid disturbing the soil (including the sidewall soils). When the water level falls anywhere below the 27.5 cm mark, refill the hole to the top. No recording of time needs be done for these 2 fillings.
# After the second filling, when the water level falls below 27.5 cm, add enough water to bring the depth of water to 30 cm or slightly more. Note that these measurements are from the base of the soil bottom (using the installed marker), not the gravel layer.
# After the second filling, when the water level falls below 27.5 cm, add enough water to bring the depth of water to 30 cm or slightly more. Note that these measurements are from the base of the soil bottom (using the installed marker), not the gravel layer.