Google is my friend, but couldn't neccessarily find an answer to this question. Long story short, I have to get randomly drug tested (and one not so random next week). If I smoked salvia out of a pipe or bong that I had smoked quite a bit of marijuana in at one point, is it possible THC will get in my system? I have a pipe I haven't used, would I be better off just using that one? I'd prefer to use my bong if I could, but the bowl is virtually uncleanable. Common sense tells me to use the unused pipe, but I figured I'd get Hipforums input anyhow.
You probably shouldn't risk it, but also salvia sucks out of a dry piece. I would never smoke salvia if the smoke wasn't filtered through water as the smoke is harsh enough already and it tastes like shit. I am guessing if you smoke the salvia today out of the bong you won't get enough resin vaporization to fail the dt. Plus you will be cashing the salvia all in one hit most likely which would also prevent more resin from being smoked.
you'll be fine.. your flame should be burning the salvia and nothing under... and even if it did, I highly doubt the amount would be significant enough to test positive.