What should I know when buying my first pump? Where should I go to get one? Or can I make one ? Once I needed a rack and pinion boot on my car so off to NAPA I go when I get the boot something about it give me the uncontrollable desire to put it on my cock . It fit good not like that's not weird enough I took a piece of tubing to put on the end and started to suck instantly I felt vacuum and the only thing unlike a pump I had to hold it to keep it from collapsing but my point is I kept using the thing for a week or two before I finally fixed the car but I'm almost sure I saw results . But what do you think?