| 摘要 |
A method of installing a wastewater drain assembly for a bathtub by inserting an L-shaped drain pipe into a drain hole of a bathtub such that an annular flange on the drain pipe rests on a bottom wall of the bathtub. Slideably mounting a lock washer over the drain pipe and threadably tightening the lock washer against a lower surface of the bottom wall of a bathtub. Connecting the drain pipe to a drain system. Testing the drain assembly for water leaks. Finally, installing a drain closure into the upper end of the drain pipe.
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