Edema has many possible causes: 1  Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. 2  Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Cars with nitrous-equipped engines can be identified by the purge of the delivery system that most drivers perform prior to reaching the starting line. A separate electrically operated valve is used to release air and gaseous nitrous oxide trapped in the delivery system.
Add your answer. Why do you purge nitrous? i am thinking of getting a nitrous kit in my 2003 cobra mustang and i need to know why you have to purge nitrous because i would like to know and i want to do it the right way. not just put it together and use it without knowing what i am supposed to do.-thanks. Follow.