Before calling for backup, try these DIY methods in order of difficulty: WHAT TO DO IF MY BATHTUB IS CLOGGED
This is often the most effective method for hair clogs. A "drain claw" or "zip-it" is a cheap, flexible plastic strip with barbs on the sides, available at any hardware store. tub drain stopped up
This natural method creates a fizzing action that can break up gunk. Before calling for backup, try these DIY methods
If the drain is still slow, use a cup plunger (the kind with a flat rim, not the flange plunger used for toilets). Before calling for backup
If your pipes are metal (not PVC/plastic, which can melt or warp), boiling water is often enough to dissolve soap-based clogs.