Water infiltrometer used to determine the downward flow of water through turf, soil, and other porous mediums.
https://diqn32j8nouaz.cloudfront.net...r_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...8885#post88257
https://www.homemadetools.net/forum/...176#post149781
https://www.homemadetools.net/forum/...624#post166969
