[TR] PDA valve

[Randall]

> Maybe somebody has figured out the size that works for the older ones, but
> the conventional wisdom a few years back when I was looking was to get the
> newer PDA.

Another option is to turn a new shuttle that will seal with O-rings.  There
used to be an article on the Buckeye Triumphs site, but I believe it was
taken down and not restored along with the rest of them.

But nothing ever really dies on the Internet ...
https://drive.google.com/open?id=0B2H2NJt34Offd01FQWptZmFUTUU

-- Randall