Source: Texas A&M AgriLife Extension Service
The Aggie Catch Can “Device” is a modified graduated cylinder used for conducting an Irrigation System Test. By conducting an Irrigation System Test (or a “catch can” test), irrigators can make better use of water resources by scheduling irrigation events more efficiently. Conducting an Irrigation System Test is very simple when using the Aggie Catch Can. This device measures irrigation volumes in both Milliliters (ml) and Inches (in).