This tank for washing produce is made from galvanized sheet metal. A baffle made of perforated sheet metal is positioned near the drain pipe and helps to circulate water through the produce. Fresh water is added under pressure through a perforated pipe, which helps move floating produce toward the drain end of the tank for removal after cleaning.
Improvements to the design shown below might include a removable trash screen in front of the baffle, and/or a re-circulating system for the wash water (with the addition of chlorine).