For a fast, permanent fix, pull out the hair manually or use a drain snake. For regular maintenance, stick with enzyme cleaners or the baking soda/vinegar method. Your shower—and your plumber—will thank you.
If your shower is flooded, try to bail out as much water as possible using a cup or bucket. The bleach will work best if it can reach the clog directly rather than floating on top of backed-up water. how to unblock a shower drain with bleach
At best, bleach will clear a thin layer of biofilm (the slimy coating on pipe walls), giving you a temporary improvement in flow. But the solid clog will still be there, lurking just out of sight. For a fast, permanent fix, pull out the
