[byrdr1]

Dont over tighten that plug it will crack and you will be looking for something to replace it with to use that HWH in the middle of your trip. And if it cracks and you try to take it out you will have an even harder problem to get the plastic out of the threads that has been left behind once you try to remove the broken plastic plug. replace it with a brass plug while you have it out. I am speaking from experiance.
randy