Today the tub refuses to drain, even a little
bit. I tried the following and none worked;

1) plunger (while trying to block the overflow
hole)
2) taking the thingy out the switches from shower
to tub mode
3) snaking the drain by hand, both from the drain
and the overflow hole
4) vinegar and baking powder
5) boiling water


None are working! Any other ideas?


Thanks in advance!