kidnyes are in control of the water and it doesn't remove it it regulates it so thers never to much and never to little how much water depends on your salt intake. the lung regulates the carbon dioxide.
the liver.
our kidney purifies our blood, and removes all unwanted salts
Large Intestine
Kidney
The kidneys filter blood and control the level of salts.
Kidney
Kidneys are the main organ, which excretes the salt from the body but then skin it hot tropical climate may loose large amount of salt through perspiration. Which may amount to one liter/ hour and may contain 3 grams/liter of salt in it.
After evaporating of the water solid, crystallized, impure salts are obtained.
it is dissolved in water
the liver
The kidney filters out salts and dissolved materials, the liver removes dissolved organics and metabolizes them. Both of these operations could be described as filtering. The pump that moves the blood to these filters is the heart.
All salts contain as a cation a metal (or ammonium).