Changes

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==Principle==

==Principle==

Using a double ring infiltrometer is a relatively simple (although slow) method of measuring soil the [[hydraulic conductivity]] or ''[[design infiltration rate]]'' of a soil.  

Using a double ring infiltrometer is a relatively simple (although slow) method of measuring soil the [[hydraulic conductivity]] or ''[[design infiltration rate]]'' of a [[soil]].  

==Measurements==

==Measurements==

==Calculations==

==Calculations==

[[File:DRI.xlsx]]

 

{{#l:DRI.xlsx|Double ring to K}}

===The Solver add-in===

===The Solver add-in===

To use the calculation spreadsheet, an additional add-in must be enabled in your Excel program.  

To use the calculation spreadsheet, an additional add-in must be enabled in your Excel program.