Hey I just installed my new tank. Any one have any leak issues with this tank? Specifically at the pet cock O ring. Also I thought about Lok-Tite'ing the screws that hold it to the tank body. Any Issues with the two screws backing out over time? I didnt loktite them because I thought it might make removing them difficult. As in the "weld nuts" spinning in the the tank. Any input is appr. Thanks, Rich.