Stir this mixture around, and then pour it into a clean, empty spray bottle. Spray the plant completely, reaching both the upper and lower leaves, and let the plant dry. Repeat the application as necessary to control the fungal problem. If the fungus continues despite the repeated application of baking soda, consider using a stronger antifungal Pour a large pot of scalding hot water down the drain to loosen the gunk, then pour about ½ cup (136 g) of baking soda down the drain. Then, add about ½ cup (118 mL) of white vinegar to the drain and cover it with a damp cloth or a stopper. Let the mixture sit and fizz for about an hour. .

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