Does bath salt stay in your systemDoes bath salt stay in your system. . . . . . . . . . how long will salt amphetamines stay in your body system? Answer: its detectable in urine about 2-4 days after use, Methamphetamine is detectable slightly longer at 3-5Drug Tests Question: How Long Does A K4 Stay In Your System?So if you are healthly, your salt will stay balanced because of your kidneys. . danger necessitating a decision to stay and fight or to run for your life . . . not affect the taste o... more