The present invention when watering with watering, watering is clogged, even if the watering is not continued smoothly, one-touch manner simple operation, smoothly and can continue watering, and, dirt cause of clogging a and dust, was so washed away naturally in watering, to provide a watering hole. SOLUTION A one in inflated form in circular concave shape of an elastic material of rubber or synthetic resin or metal, watering hole plate having a plurality of nozzle holes which can reverse the irregularities of the sides of the central portion of the bulge to one side, it provides a pair of inversion axis 3 and one of the knob hand 4. In the opening 6 of the watering hole body 5 provided with a knob hand groove and a pair of bearing groove 7, to have a structure that is combination is fitted each of the inversion axis 3 to one of the knob hand groove hands 4 knob to the bearing groove 7. As a result, the knob both sides of the watering hole plate 1 and to semi-rolling Remove from knob hand groove with a hand 4 can be reversed.BACKGROUND.【課題】じょうろで散水する時、じょうろが目詰まりを起こして、散水が順調に続けられなくなっても、ワンタッチ的に簡単な操作で、散水を順調に継続でき、且つ、目詰まりの原因の汚れやゴミを、散水で自然に洗い流せるようにした、じょうろ口を提供する。【解決手段】ゴム又は合成樹脂又は金属の弾性を有する材料で円形で凹レンズ状に一方に膨らんだ形態であって、膨らみの中央部の裏表の凹凸を逆転できる多数の散水孔を有する散水孔板1の側部に、一対の反転軸3と一つのつまみ手4を設ける。一対の軸受溝7とつまみ手溝を設けたじょうろ口体5の開口部6に、反転軸3を軸受溝7につまみ手4をつまみ手溝の一方にそれぞれ嵌め込んで組み合わせた構成とする。これにより、つまみ手4を持ってつまみ手溝から外して半転させると散水孔板1の裏表が反転できる。【選択図】図1