In tanks using a flapper-flush valve, the outlet at the bottom of the tank is covered by a buoyant (plastic or rubber) cover, or flapper, which is held in place against a fitting (the flush valve seat) by water pressure. To flush the toilet, the user pushes a lever, which lifts the flush valve from the valve seat.
Intestines make up the digestive tract. Photo Credit Denis Raev/iStock/Getty Images. Your intestines make up most of your digestive tract. Much of your digestion takes place in your small intestine, while your large intestine absorbs water and excretes waste. Inflammation of the intestines is the primary characteristic of inflammatory bowel diseases, or IBDs, which include Crohn's disease and colitis. Though dietary measures cannot cure IBDs, according to the Crohn's and Colitis Foundation of America, certain foods may support intestinal healing and help alleviate symptoms.
Pretty much all the stomach does is take food in, store it for a while, produce acid and enzymes to make food sludge, and then slowly feed the sludge into your small intestine. Water (along with most of the food nutrients that you consume) is mostly absorbed by the inner lining of the small intestine. That organ is actually quite large, with a massive inner surface area. The intestine is typically more than 6 meters long, with a diameter of 3-5cm. That means that the small intestine can not only take in a large volume of liquid, it can also absorb the liquid fairly quickly. The water and nutrients absorbed in the small intestines go directly into the bloodstream to be processed and used by the various organs. In a GI tract that has not been modified by surgery, the food and water can sit in the stomach for 2-3 hours before being completely emptied into the small intestine. In your case, the water may be going almost directly into your small intestine, so long as there is no food to hold the process up.