The flapper is the part of your toilet that lets water flow from the tank on the back down into the toilet bowl, creating the flush. If the flapper doesn’t open all the way it won’t release enough water, which means you’ll get a weak flush. Clogs are common in toilets with a weak flush.Click to see full answer. Also question is, how do you fix a choked toilet bowl? Pour 1 cup baking soda and 2 cups vinegar into the toilet. If you don’t have baking soda and vinegar on hand, try adding a few squirts of dish soap to the toilet bowl. The soap may help to loosen the clog. This method isn’t likely to work for clogs caused by a hard obstruction, such as a toy. Furthermore, what causes a blocked toilet? The most common material that blocks a toilet is toilet paper. Too much toilet paper being used and dumped for a single flush can cause a blocked toilet. When flushed down in any toilet, they will just buildup in its pipeline causing the toilet to become clogged. Additionally, will a toilet eventually unclog itself? Absolutely. Well, a clogged drain line can clear itself, given enough height of standing effluent. If the toilet’s trap itself is clogged, sometimes, if you fill the water to near the top of the bowl it will unclog, but that would be more of a case of the water softening the stool until the flush can finish.Why does my toilet have a weak flush?Toilets usually lack flushing power because the waste pipe, siphon jet, or rim jets are partially clogged, or the water level in the tank or bowl is too low. In those cases, clear the blockage and adjust the system to correct the water levels.