New to pumping

Hello, I’ve just got into pumping and ordered a LeLuv pump with a gauge on it and it has perfect proper fitting. I’ve read many guides on pumping and it tells beginners to start around 3-5 hg. The only problem is I don’t know which part of my gauge is the Hg. There are two circles surrounding the pump. One is red that progressively goes from .2 to .4 and so on till it hits 1(max pressure) which is the end of the gauge. The second circle is black which goes from 0 to 5 to 10 and so on till it hits 30 (30 is max pressure). Now the question is when I’m pumping I should be around 3-5 hg. Does that mean around .3 and .5 on the gauge? Or does 3-5 hg mean the actual 3-5 on the black circle?

I’ve attached a photo so I can give you guys some visual reference.

Once I get this figured out, I will have two 5 minute pumping sessions as a beginner.

Any answers will be appreciated, thank you.

Hg is the 0-5, 5-10, etc. Stay at 5 until you have conditioned your penis. I rarely go above 6hg and I have been pumping for years.

At the bottom of your gauge in black you see “Hg (inHg) which corresponds to the outside black numbers. The outside black 5 is the important reference point for you.

You can ignore the inside red numbers as they are metric values which we very seldom refer to here, but for completeness, metric vacuum on your gauge is measured in both BAR and 100 kPa. We more commonly see metric vacuum measured in mmHg.

Start at 10 minutes and add a minute a week until you hit 20 minutes. Than you can add a second session at a different time in the day.I did 20 minutes when I woke up and 20 minutes at night before bed time, five or six days a week. After several months, I added a 45 minute session at 4 hg once a week. After four yesrs, I had gained about 1 inch.