Originally Posted by RVhiker
snip......Any theories on this?
Sure........,the plastic plug will require a little extra turn of the wrench each time it is reused in order to get a good seal. I would also guess the continued hot/cold temp swing will compromise the plastic plug over time as well.
Even using plumbers tape on a reused plug doesn't guarantee there will be no leaks...been there, done it.
Like Terry, I keep a couple on hand....., seems someone is always in need of a new one