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21st century vacuum/vapor system?
I've been toying with the concept of a 'modern retro' vacuum/vapor system based on
currently available (or easily fabricated) components. It should be able
to be retrofitted onto an existing two-pipe pressure system, and
may also be useful in rehabilitating vintage vacuum/vapor systems which
have suffered from knuckleheading.
Is anyone doing this now? How feasible is it?