"Jay Honeck" writes:

As a precaution
(I'm assuming some sort of contamination caused the second failure), I've
ordered new vacuum hoses -- enough for my A&P to replace all the hoses, from
the vacuum pump to the firewall, and from the firewall to the two vacuum
instruments. I'm also having him replace all the filters.

A somewhat dumb question. Each vacuum-driven instrument has its
own input filter, correct? The hoses and pumps are then all downsteam
of the instrument.

Does garbage really migrate upstream into the expensive toys? (And
if so, you'd thunk someone would add a inline filter between the
toy and the common vacuum line..)

Education welcomed.
--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433