I don't know what to do. I closed the bathroom sink plunger for my first time ever, to wash a shirt, and now pushing or pulling the handle doesn't open it! It's like it's not even connected anymore. The sink is old. The water will not drain, except through the emergency drain hole at the top of the sink. And when I use the sink, it overflows, since that hole is too small to drain. I now have a fruit fly infestation.
I don't want to have to contact the landlord to fix this for various reasons. She wouldn't be able to fix it for a few weeks anyway. The water in the sink is disgusting. I don't want to have to open the sink from the bottom pipes either. Is there any way to manually force the plunger open so the sink drains again? I tried a kitchen knife, but it wouldn't fit. I need something strong, yet thin, to fit in.
Thanks!