On 07/29/2018 11:02 AM, Glenn Little wrote:
The fiber filter catches a lot but not all of the vapor.
A lot of the flux vapor condenses out onto the inside wall of the tubing connecting the iron to the vacuum pump.
Yes, that is why I was suggesting a section of pipe with TP wads -- it would be a cold trap and a big wide filter,
and it wouldn't have to be vacuum perfect since only intermittently pulled down.
For an on-demand pump, the old Hakko 470 has a diaphragm pump with rubber reed valves and works pretty well,
so it's not on my to do list yet.
Strong vacuum from a reservoir and mini-fridge pump sounds better for good solder sucking.
then the cold-trap-filter between iron and solenoid valve would be worth it.