| 摘要 |
A carwash trench drain. In one embodiment, a method is provided for installing a carwash trench drain. The method includes the steps of: providing precast wash-trench sections, digging and grading a trench, and setting the precast wash-trench sections in series joined end to end in the trench to provide the carwash trench drain. In another embodiment, a section of carwash trench drain includes a precast section of generally U-shaped rectangular cross section. The precast wash-trench section includes a horizontal floor and opposite first and second sidewalls. The first and second opposite sidewalls respectively define first and second top edges. At least one wash-form is fitted to the top edge of at least one of the opposite sidewalls.
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