Is it a good idea to put some kind of anti-seize compound when you install faucet valves etc. The idea is that years later you want to be able to easily unbolt, extract a valve stem etc without struggling with a blowtorch. This is because after you installed a valve that over time as it sits there the thing hardens making it very difficult to remove. So anti-seize compound is a good preventative measure. These are the same things used in automotive mechanics application, ie when they bolt things to the engine they would put it around the thread of the bolt and years later, it can be unbolted easily. The reason I am not sure is whether this is toxic or not, after all we still have to get water from the faucet for cooking etc. Any idea?