[BILL WILLIAMSON]

The nail should not pressurize the system,as it just dances around. Use a nail with a large head, but a skinny shank. If it rusts, use a stainless or brass nail, or even a screw.
See, see, I told you it works! Claude told me about it, he said it was an ooooold fix! and he is ooooold! Bill W.