建筑法规可能还需要防虹吸或回流装置，使地表水不会被拖进水管道线路和住宅回来。
Building codes may also require anti-siphon or backflow devices, so surface water won't be pulled back into water lines and residential plumbing.
无水小便器要比传统便池成本更低。加上因为没有进水管道和冲洗设备。安装成本降低很多。
Installation costs are also lower since there is no water line to hook up or flushing devices.
通过顶部玻璃纤维绝缘层可以连结管道和电源。使用如图所示的弯管、螺纹接头、管道接头连接冷水进水管和热水出水管。
Connect the cold water supply line and hot water outlet lines using elbows, nipples and unions as shown in the diagrams.
本实用新型公开了一种水压管道疏通器，它由充水管、进水管、椭球型胶囊组成。
The utility model discloses a water-pressure pipeline dredger, which comprises a water filling pipe, a water inlet pipe, and an elliptical ball-shaped capsule.
这种大口径管道试水用堵水器的基本结构包括环绕支架设置的堵水 气囊，支架上设置进水管或排气管。
The water-plugging device of large diameter tube used for water-finding comprises a water-plugging gas bag arranged circulating the frame, an inlet pipe or a discharge pipe is arranged in the frame.
这种大口径管道试水用堵水器的基本结构包括环绕支架设置的堵水 气囊，支架上设置进水管或排气管。
The water-plugging device of large diameter tube used for water-finding comprises a water-plugging gas bag arranged circulating the frame, an inlet pipe or a discharge pipe is arranged in the frame.
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