Will water alone flush heroin out of your system?

What type of illogical state of mind are you in?

First of all, heroin is commonly injected. It will go to your blood stream & it's not until every single one of your blood cells have been replaced that it will leave your body.

Drug tests want to see strong evidence, not what happened years ago, so- especially with strict employers- people whom conduct these tests want to know how you are NOW, not 10 or so years ago.