Alright, so this is the 2nd time my loop has leaked. I have determined the cause to be that the compression fittings unscrew over time because my tubing twists slightly, and thus the fittings untwist. Is there some sort of tape or something which i can use to make sure the fittings screw in? Is there something I am doing wrong? Should I just cut longer sections of tubing to make sure they don't twist at all (They only twist maybe 150 degrees at most!)? I am a total noob, so maybe I completely screwed up or something, since leakage seems to be very rare and compression fittings are apparently the safest fittings around.