Stop. Softness is the enemy.
Initially, you have a mass of individual sheets. They float. But as soon as they hit the standing water in the trap, they start to hydrate. The surface fibers loosen. Instead of remaining separate, they begin to mat together. blocked toilet with toilet paper
Boiling water can crack your porcelain. Instead, fill a bucket with very hot tap water. Pour it from waist height—the force of the pour creates pressure. The heat accelerates the breakdown of the cellulose fibers. The soap lubricates. The water weight pushes. Stop. Softness is the enemy. Initially