John wrote
"Another thing to consider is the smoky output of desoldering. I recently repaired a Hakko 470, that has
an on-demand vacuum pump, and found the smoke had gummed up the rubber flap reed valves of the pump.
It's a good idea to have some kind of receiver container up stream of the solenoid you use, since it
would be in line to get rosin smoke. Maybe a pipe fitting container with wads of TP in it?"
Good point John. The filter wadding usually built into the desoldering head traps the chunks and some condensates, but it's inevitable that some fumes will go through the vacuum system, causing maintenance issues with heavy use.
Ed
