Quoted from Atomicboy:Does this just have a reloadable pump style suction system, is does it vacuum the solder away constantly when the trigger is pulled, like the Hakko 808?
Vac runs as long as the trigger is pulled. What do you mean by reloadable? The cartridge comes out which includes the metal shell, a silicone end piece, a tapered funnel spring, a wettable sponge, that sits between the nozzle end and the vacuum hose end.
There was a thread over at KLOV about 4 years ago on this and why I purchased it. Check there for more details too.
Here's the start point of someone who bought one in a thread about the Aoyue 474A+ (another clone), so more info about the BlackJack is there. http://forums.arcade-museum.com/showthread.php?t=121330&page=2