Drainage device for hydroponic cultivation containers

Abstract

This item is a drainage device that is attached to the drain outlet of a hydroponic cultivation container, as shown in Reference Figures 1 and 2, which show the state of use. When viewed from the front, this item has an inverted J shape, with a flange extending from the outer periphery of the long side and an inlet provided at the end of the short side. In addition, the bent portion of the short side is provided with a hole for taking in air to maintain a minimum water level in the hydroponic cultivation container. When this item is attached to the drain outlet of a hydroponic cultivation container, the flange abuts against the periphery of the drain outlet, and the inlet is positioned above the flange.