To find out when your post office is open: 1  Enter your location in Find a Post Office. 2  A map will appear displaying post offices near you. 3  Select Hours and Services. 4  Select your desired location to view the hours of operation.
Testing Soil pH with a Commercial Test Probe. 1  1. Dig a small hole in the soil. 2  2. Fill the hole with water. 3  3. Insert the test probe into the mud.  4. Hold it there for 60 seconds and take a reading. pH is usually measured on a scale of 1-14, though the tester may not include this entire range.
Trees, Shrubs, Vegetables, and Flowers. An accurate soil test will indicate your soilâs pH level will specify the amount of lime or sulfur that is needed to bring it up or down to the appropriate level.rees, Shrubs, Vegetables, and Flowers. An accurate soil test will indicate your soilâs pH level will specify the amount of lime or sulfur that is needed to bring it up or down to the appropriate level.