試試這個

https://www.homedepot.com/p/NIBCO-3-4-in-PVC-DWV-MIPT-Cleanout-Plug-PVC-PLUG-FOR-CLEAN/100677996

所有跟帖： 

• this is way too big... -borisg- ♂ (0 bytes) () 04/24/2025 postreply 17:26:17

• Your drain is one and half. Get an expanding drain plug. -borisg- ♂ (0 bytes) () 04/24/2025 postreply 17:30:01

• 謝謝波大！請問這個管子開口是做什麽用的？用來通snake嗎？ -bbpearl- ♂ (0 bytes) () 04/24/2025 postreply 19:54:02

• Looks like an old drain not used anymore but still connected -borisg- ♂ (25 bytes) () 04/25/2025 postreply 03:47:03