The body quickly absorbs and metabolizes codeine narcotics. So for most standard blood or urine screens, codeine will be detectable for 1-2 days. However, codeine is detectable in hair for longer periods of time. More here on the length of time codeine stays in your system, plus how you can get addicted to codeine.
Quick Answer. There are a number of reasons why a toilet may make noise after flushing; however, a loud noise that takes more than a minute after flushing the toilet may indicate a restricted water flow or a problem with water pressure. In such a case, the pressure valve should be adjusted while the toilet is making the noise.
You may periodically hear your toilet begin to spontaneously refill, as though someone had flushed it. A toilet that cuts on and off by itself, or runs intermittently, has a problem that plumbers call a phantom flush. The cause is a very slow leak from the tank into the bowl. This problem is almost certainly caused by a bad flapper or flapper seat.