I have about 12 clearos I rotate, each with different flavors. Some have sat in the clearo for better than 2 weeks before I go back to it. I got to thinking that maybe I shouldn't do this. With the juices in the tank bathing in the metal parts for weeks on end, I wonder how much of the metal components are being leached into the juice? Also, saliva dripping down the drip tip can break down the juice as well, not to mention bacteria. I'm not going to do this anymore. I think i'll narrow it down to 2 flavors running and wash my clearos at the end of the day. Curious, what are your vaping practices when it comes to this?