Once water passes through the stomach and later on the small intestine, most of the water consumed passes through the blood stream. The small intestine having its length approximately 20 ft long, efficiently absorbs the water into the cell membrane and blood - stream. Once absorbed in the body, the water helps in a number of vital functions.
In fact, our consumption of water is not up to the desired level often consuming less than a litre. Hence under that condition removal of toxins from the system is affected substantially.
There exists a difference between eating food and the drinking water. Once the food is consumed, it is digested where as water is absorbed into the body - system.
The journey of water begins in the mouth and the first major step noticeable is the hydration. After a few gulps of water, the brain provided signal whether whether the intake of water is sufficient or not. The communication between the brain and mouth allows someone to stop drinking at the appropriate time, even if the water is not fully hydrated the entire system.
From there it passes through the stomach by means of esophagus - a small pipe connected to the mouth and the land of stomach. The rate of absorption of water will depend upon the state of stomach ie empty or full. In the empty state, the rate of absorption will be faster as compared to full stomach. The small intestine efficiently absorbs water into the cell membrane and blood stream. The journey of water does not stop there . It will strengthen the functioning of the entire vital organs.
One such task is to filter toxins due to abundant presence of water. Of course, it is the task of kidney to expel the toxins. However, removal of toxins is expedited due to proper intake of water. Whether the intake is sufficient or not can be gauged through the colouration of the urine. Yellow colour would indicate less consumption of water and less intake of water may cause stone formation of kidney apart from dehydration. Dehydration may cause elevation of serum Creatinine a disorder of kidney - function.
Excess water is removed through urine and its exit point also through the rectum where stool passes in the soft state because of hydration of the body due to proper intake of water.
Small droplets of water also exit from the body via breadth. It can be seen during the days of winter when one can see the vaporisation of water iminating from the mouth.