| 摘要 |
PURPOSE:To enable formation of a foaming tool capable of ensuring a wide foaming area for blowing air into a nutrient solution in a water culture apparatus for normal household use with high usability by providing a construction in which a foaming plate equipped with an air feed port and a weight plate are detachably fixed in a case. CONSTITUTION:A foaming plate 2 constructed by superposing a nonwoven fabric 6 on a resin plate 5 and hermetically sealing all the peripheral part other than an air feed port and a weight plate 3 consisting of a material, such as stainless steel, having a higher specific gravity than that of water are contained in a case 1, which is provided with engaging pawl parts 4, constructed from plural cuts and having elasticity in the outer peripheral wall part thereof. The foaming plate 2 and weight plate 3 are detachably fixed with the engaging pawl parts 4 in the case 1. Even if the foaming plate causes trouble, such as clogging, in the above-mentioned foaming tool, only the foaming plate can be readily exchanged. |
