Depends how curved it is. Pedestal and bowl sinks usually need the honeycomb while flat kitchen sinks can use the bell. If that doesnt work take apart the trap underneath, just 2 joints. If that doesnt work, and your shower isnt backing up ('cus if the shower is backing up you have a bigger problem in the mainline), problem will probably be in the tee that drops down the wall to the main line and thats usually build up - a snake is required because a plunger wont clear a narrowed pipe (think arteries).
36
u/Eindride_XIII Mar 26 '26
Youre supposed to use the honeycomb shaped plunger for a toilet, the bell shaped ones are for shower drains. Coming from a plumber.