To dissolve poop, you don’t necessarily have to use chemicals. Vinegar can unclog the toilet as well, but you’ll have to wait a little longer. The baking soda dissolves the poop too. This is why the combination of vinegar and baking soda cleans the toilet twice faster. Bleach is one of the most popular ways to get rid of the clog with chemicals. Boiled water can soften the block, while shampoo just helps to make it slippery and easy to get through the pipe.