jchung wrote:Needless to say... I am well accustomed to opening the BDB and swapping out the o-rings.
A valuable skill that will serve you well in a long life with the BDB. If you ever graduate to re-plumbing her through the needle valve, making her into a flow profiler, you are more than well prepped with the skills to do so. More than most of the others who have done it.
And Tony, you should read the ball valve thread, but the sealing surfaces are PTFE washers against the ball. PTFE cold flows and eventually loosens. The first thing to do flip the washers around so the un-worn side is now against the ball. When you screw the parts together, you want to feel the drag of the ball against the washers. In some cases, you might be able crack the thread locker and get a partial extra turn of tightness for a temporary fix without disassembly. But over the long haul, disassembly is going to be the order of the day, and cracking the threadlocker is going to be required. I've had a couple I could crack with the 6mm hex key, and a couple I had to heat with a propane torch to break it down. It's in the thread toward the end.