Those leaky lower-hose drain petcocks!

[Bobs29ModelA]

I recently made the mistake of replacing an old lower hose drain petcock on my car, only to find that the new replacement was leaking (as in a slow drip) a couple of days later. I gave it a while to see if maybe it would stop on its own, but it didn't. I then replaced it with yet another new one, only to have the exact same thing happen again. In both cases, I'd purchased the more expensive "US-made" unit, instead of the cheaper Chinese-made unit. Needless to say, I'm very disappointed with all this, especially with the prospect of losing coolant a second time, while trying to put-in a 3rd new valve... with still no guarantee that it would be any better than the first two replacements.

Anybody have the same experience, and/or, come up with a more reliable replacement for these things? I'm now considering just putting a tapered brass plug in there and calling it quits!