I posted this above as well, but cocaine is extremely water soluble -- 2 grams per ml of water will dissolve, or a little over 20 times the solubility of baking

I posted this above as well, but cocaine is extremely water soluble -- 2 grams per ml of water will dissolve, or a little over 20 times the solubility of baking soda. Even with a low-flow modern 1.28 gallon toilet, it certainly wouldn't "clump up" -- more like instantly disintegrate.