All matter of stuff unfortunately makes its way down our drains. Try as I might I can't always control who is putting what down them. This is a drain cleaner recipe that my Mom uses in a pinch (after the plunger fails).
Drain cleaner: Then try 1/2 cup washing soda followed by 2 cups boiling water. For a stronger treatment, combine a handful of baking soda with 1/2 cup vinegar. Close the drain and let it sit, then flush with water. Do this regularly to prevent buildup. (Washing soda is an alkali much less caustic than lye, but it should be kept locked up. It is dangerous.)
