Tip For All Pumper's
This is a tip for all pumpers like the name of the thread states. I got this one from rereading Vacuum Pumping 101 and modifying something Avocet 8 mentioned. So see guy’s it does do good to go back and reread post.
First you will need a felt tip marker like a sharpie and a ruler or a tape measurer. Next measurer from the very bottom of your tube too the top and wright a line for every inch. ( If your tube has a flared edge don’t measure from the top of the flared edge but from the very bottom ) Now were you wrote the lines, mark right beside the lines 1,2,3,4,5…etc ( for people who still don’t get it, it should look just like a ruler on your tube ) and whala you have a convenient way of keeping track of your progress and something that will give you the desire to keep going.
P.S. if you want you can mark every 1/16, 1/8, 1/4, and 1/2 inch so it looks just like a ruler.
N2H