Changes

*''d'' = Depth of infiltration practice in m.}}

*''d'' = Depth of infiltration practice in m.}}

==Step 2==

==Step 2, geometry and perimeter==

[[file:Hydraulic radius.png|thumb|Two practice areas of 9 m².<br>

[[file:Hydraulic radius.png|thumb|Two practice areas of 9 m².<br>

P = 12 m (left), P = 20 m (right)]]

P = 12 m (left), P = 20 m (right)]]

Divide the area of the practice (''A_p'') by the perimeter (''P'').

Divide the area of the practice (''A_p'') by the perimeter (''P'').

</poem>

</poem>

==Step 3==

==Step 3==

[[File:Sizing bio2.png|thumb|The duration of surface ponding is usually determined by the emptying of the facility below.]]  

[[File:Sizing bio2.png|thumb|The duration of surface ponding is usually determined by the emptying of the facility below.]]