Sigh.... Been wanting to put this in but put it off for sanity's sake. Screw it, maybe someone will learn something and avoid the embarrassment.
I have owned a Hakko 808 for almost a year now. I love it. I will never sell it. I cannot do board work without it. One day, it ceased to work. It had been intermittently weak for a few days but then it just quit altogether. After running the cleaning rod through for the thousandth time, I decided to look a little deeper. Watched some utube vids on how to clean the pumps. Easy day. Done and done. Damn thing still won't suck! As I roll it around in my hand for the hundredth time, I see that the screen behind the removable part that holds the old solder is very dirty. So I take a fresh cotton swab with a little 97% on it and go to scrub it. And it starts to disintegrate. And I realize that it's a filter. And I suddenly recall a little packet of four of them in the case I haven't looked in since I bought it. Took my tweezers and a pick and extracted the remainder of a VERY filthy and quite original paper/cotton filter. Put in a new one. Sun of a gun works like a champ now. The whole time as it got dirtier, the stupid filter looked for all the world like a little metal screen. See what I get for never looking in the manual?