A casing should be installed where the pipeline passes through the floor or wall; no joints should be left between the floor and the wall, if there is, it should be set in a bright place for easy maintenance and replacement; the casing should be set in a room with frequent water, and the upper part should be 30 meters above the ground. -50mm, the lower part is flush with the shed, the thickness of the decorative layer should also be considered when installing the casing; the gap between the casing and the water pipe can be filled with asphalt oil hemp wire to prevent dew from flowing into the lower layer.
