Vacuum Pumping 101

In that case, light jelqs and heat. They’re great for EQ when incorporated properly. You say ED, I thought you couldn’t get up at all. Don’t do too many, keep them light. Just strong enough to move blood around. You’re not really wanting to work it, but restore it. Go easy. Not much tighter on grip than what you would masturbate with. A couple sets of 50 for a few days should get you headed back on the right track.

How do you read the gauge on this Harbor Freight style brake bleeder pump from 0 - 5 Hg? Is the first notch 0.625, 1, or 2 Hg? Thank you pumping friends!

Without a proper gauge to compare it to, I’d assume the first mark to be 2”.

Unfortunately I’ve seen more than just the HF gauges with upgefucked markings. Which also makes me wonder how accurate the gauges are in general.

Fortunately you don’t really care what the exact vacuum level is; you’re generally going to increase the vacuum until you get edema, petechia, or pain, and whatever the gauge says at that point is your “do not exceed” mark.

That’s similar to several other guages that I have in various automotive diagnostic kits and my mityvacs. I think it’s safe to say the large notches or ticks are 4, 3, 2, and it takes at least 1 to get the needle to move at all.

I tested my mityvac against some of my fuel injection equipment, and it’s accurate at 5, 10, 15, 20, 25, and 30.

Does amount of shaft skin have anything to do with pressure sensitivity? Like if you are cut or uncut, would that have any affect on edema / red spots? I’ve just started pumping again after a couple years break and I get discomfort above 2 Hg. I’m sure my penis will adapt with time, but I see so many people claiming pressures above 5 Hg for super long sessions with no negative effects, so it makes me wonder.

No negative effects that they’re sharing about anyway. I bruise and petechiae pretty easily, especially pumping. Occasionally when I Horse440, I’ll get get blood spots on my skin, yeah on the outside. Can I go above 5inhg? Yep. Have I? Yep. Do I think it’s necessary? Nope!

I don’t think the amount of skin would have anything to do with comfort level. If you had an excess of skin, it’s just more that can edema.

I read allot where guys say they can’t go over 2-3inhg. I’m not saying this is the case, but it sounds like they’re not conditioned or warmed up beforehand. I’ve never experienced that problem myself at those levels, even when starting out. There are random days that out of the blue, 5inhg feels like allot. I just push through it, after 5-10 minutes, it’s back to normal and everything feels fine and I keep going with the set.

Petechiae and red spots rarely happen for me. If I’ve taken more than a few days off and jump back in instead of easing in, is when they usually show up, if at all. They’re hardly ever there for consecutive pump days, in fact, I think consecutive reasonable level pump days even help reduce their prevalence, by forcing fluid exchange. Some advanced manual girth exercises seem to do the same thing, not 440’s of course. Try fire rolls as soon as you get out of the tube, that can sometimes make them go away instantly.

Make sure you warm up, and keep it warm.

-Stay safe

I’ve upgraded my normal cylinder to 2,75” from 2,5”. I mean it’s arriving here soon. Anything I should know since I don’t think I’ve ever made a leap so big in cylinders that is a quarter inch (always used custom tubes with tinier amount of girth upgraded at a time). Anything I should know while I’m at this new circumference? I’ve noticed I’ve had more problems with getting my balls sucked into the cylinder the further I’ve proceeded on with the sizes, even tho I’m packing every tube. It’s a Boston Pumps flanged cylinder which should be effective against that problem, though.

Thanks 114. I’m pumping and getting more comfortable at 3 Hg. I think I’m just really new to It. My Leluv pump has the smooth rounded edge at the base and is digging in to me pretty hard, but I’ll get one of those rubber sleeve things soon.

Should my BPEL or max length in the tube (3 Hg) be higher? Right now I’m 1/8 - 1/4” shorter in the tube than normal BPEL with a ruler. Is that normal? Im ~12% bodyfat . Idk if that matters here. The ruler and cylinder both seem to press into the fat pad the same amount and I’ve verified that the measurements on my ruler and cylinder are the consistent. Thanks for all the help!

Does your shaft fit the tube snugly, or do you have a lot of room on the sides?

In my case, a large diameter tube will increase girth at the expense of length.

Most of my shaft fits the tube snugly. The portion of my shaft right under the glans does not.

You’ve been pumping for a while then, not much to add that you don’t already know, I would think. Keep lube away from the base and balls is about all you can do. When you enter the tube, keep your shaft at the bottom side, let it center itself as you pump.

How it fits, would be the deciding factor. Maybe stage it. Pack up on the 2.5” dry your sac and the base and then switch to the 2.75” for the remainder. You might find that you indeed need the flange sleeve. Jump in and find out!

-Stay safe

Good job thinking to compare the tube scale to your ruler. At 3 inhg you’re at about the right spot for ITL/BPEL (in tube length). My ITL is usually my BPEL at 5 inhg for the first 10-15 minutes with heat and either a static or maintained pump, then it starts moving beyond. Dynamic, it happens much faster, in 5 minutes or so.

For clarity,
Static: Get in set the vacuum and let go. If it vacuum stays it stays; if it drops as you expand, let it drop. If you have a leak, this won’t work. Fix the leak.

Maintained: Keep the vacuum level constant with maintenance pumps as you expand.

Dynamic: Every 5-10 minutes, drop vacuum to 1-2 inhg or less for 30 seconds to a minute, and return to desired vacuum. Pulsing also falls into dynamic by definition, only the vacuum levels are different i.e. 12 inhg dropped to 7 inhg. They both function the same. The drop is for blood exchange and relaxing of the tissue, in theory it should eventually stretch further as vacuum is reapplied repetitively.

Hopefully you can break the 3 inhg barrier you have. That’s hovering right around your natural vascular ability. If your flange is hurting you, that’s definitely gonna make any vacuum level feel worse than it is.

I would bet dollars to donuts when you get your flange seal, it’s gonna be a completely different experience, assuming it provides some cushion and it’s not just a gasket. I’m not familiar with Leluv or their designs, just the name. If you ever buy another tube, be sure to get a wide flange. Don’t forget the flange seal will change the tube scale in relation to your pubic bone.

A comfy tube truly makes a world of difference.

-Stay safe

What are those tiny “red dots” technically called again?

Anyways; is it dangerous to keep going if you’ve got them?
I’ve been reading posts on here that are conflicting. Some saying they’re signs of a good workout, and others saying they might become permanent if you keep it up.

I think I’ll err on the side of caution, but I’m curios as to the current “consensus”, because many of the posts I read were over a decade old.

I have never seen any posts that suggest petechiae are a result of a good workout. They are definitely not. They are spots of bleeding under the skin caused by broken capillaries, and are a signal that your session time is too long and/or the vacuum is too much. I do not know how permanent they are but I do know that the more you have them the capillaries will continue to be weak and therefore will continue to develop during the session.

My two cents: I think they also, over time, contribute to development of a darker dick. The skin will darken, sometimes very noticeably and it takes a long time to reverse. Slow and steady wins this race.