| 摘要 |
PROBLEM TO BE SOLVED: To provide a tube for sprinkling in which positions and sizes of sprinkling halls hardly change even when air temperature varies at a time of sunshine or the like and which hardly deteriorates even after long time use.SOLUTION: A tube 1 for sprinkling comprises, in a longitudinal direction, a plurality of sprinkling halls H are provided at intervals and a water pipe 10 which is laid on a ground surface G with a lower half part 10D thereof facing the ground surface G side and an upper half part 10U thereof facing upside. Thickness of the upper half part 10U is formed to be thicker than thickness of the lower half part 10D. It is preferable that the thickness of the upper half part 10U becomes gradually thicker toward an apex 13. |
