Moister trap??

I have a G6 hand pump that I use, I ordered it off of pyramid air. I have heard of you guys using some type of moister trap to catch all the liquid or water that is built due to the high pressure I guess. My question is do I need some type of moister trap or am I good? The last thing I want to do is pump water into my gun. Also whenever I bleed the pressure off there is a small amount of water that seeps out of the bleed plug and I know this is normal but ??