This project outlines how to unclog a shower drain with standing water. The first step involves removing the drain cover, which can be done by unscrewing or prying it open with a screwdriver. Next, remove any visible hair, soap scum, or debris from the drain opening using tweezers, pliers, or a similar tool. If the clog persists, carefully pour boiling water down the drain to dissolve soap scum and loosen buildup. You can also try using a mixture of baking soda and hot water, letting it sit for a few minutes before flushing with hot water. Finally, reassemble the drain and test with running water to ensure the drain is clear and flowing freely.