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Vacuum Pumping 101

This morning I took avocet8’s advice about marking the cylinder except I had an epiphany. I was over doing the pressure a little simply because I couldn’t tell what was normal 100% EQ when pumping and what was excessive. So I stimulated myself to nearly 100% EQ, then inserting myself into the cylinder and equalized pressure to 4-5psi. Just enough pressure to feel myself get 100% but not so much that I began to feel a tugging sensation. I then marked where that point was looking through the clear cylinder at a right angle and wrapped a strip of Velcro(it was all I could find I wish I had tape) and push it to the top of the mark. From there I now know what my normal erection level is so that I can carefully monitor fluid buildup, EQ, and over training, which isn’t a bad idea.

After my two fifteen minute sessions superset with fifty wet jelqs my penis didn’t feel as sore and tired as previous overtraining sessions above 5-6psi. I believe this method could be a good indicator for those pumping without pressure gauges. As always I would love to hear any feed back on this

Originally Posted by TheGreatDivider
From what I have seen on their site vacu-tech makes very good products. When you out grow your net cylinder I am sure you could probably find another on eBay. Too bad we can’t come together on TP and create a new and used pump market for one another.

Well the tube is nice but I can only fit my head into it. I guess I should just hand back my engineering degree because I can’t measure correctly.


6/24/07: BPEL - 4.5", EG - 3.5"

5/28/08: BPEL - 5.063", EG - 3.5"

Goal: BPEL - 7", EG - 4.5"

Originally Posted by superchill
Well the tube is nice but I can only fit my head into it. I guess I should just hand back my engineering degree because I can’t measure correctly.

Oh don’t be so hard on yourself friend. With all the crap we have to learn in high school and college some things are forgotten.

For future reference CIRCUMFERENCE=DIAMETER X(TIMES) PI(3.14)
That should give you a close circumference of the inside of the cylinder.

Well, I hate to say it but I don’t think you can return the cylinder. You may be able to get up to 2/3 the original price on eBay or Craigs list if you advertise right. Then you can just buy another one or shop around for a cheaper price. Btw sometimes you can get away with using a cheap sex store cylinder with a better pump but you will have to look carefully for one without a plastic seam that could shatter.

I’m sorry to hear about your misfortune but remember every mistake regretted is a lesson learned.

Ok, thanks! Actually I can fit with lube and if I don’t have an erection, but the base is very very snug when pumping (is it supposed to be that way)? So I guess I can use the tube but not for very long.

Originally Posted by TheGreatDivider
Oh don’t be so hard on yourself friend. With all the crap we have to learn in high school and college some things are forgotten.

For future reference CIRCUMFERENCE=DIAMETER X(TIMES) PI(3.14)
That should give you a close circumference of the inside of the cylinder.

Well, I hate to say it but I don’t think you can return the cylinder. You may be able to get up to 2/3 the original price on eBay or Craigs list if you advertise right. Then you can just buy another one or shop around for a cheaper price. Btw sometimes you can get away with using a cheap sex store cylinder with a better pump but you will have to look carefully for one without a plastic seam that could shatter.

I’m sorry to hear about your misfortune but remember every mistake regretted is a lesson learned.


6/24/07: BPEL - 4.5", EG - 3.5"

5/28/08: BPEL - 5.063", EG - 3.5"

Goal: BPEL - 7", EG - 4.5"

Originally Posted by superchill
Ok, thanks! Actually I can fit with lube and if I don’t have an erection, but the base is very very snug when pumping (is it supposed to be that way)? So I guess I can use the tube but not for very long.

I was going to suggest you still use it for a length at lower PSIs but that all depends on you. You may be able to get a few good months out of it before you step up to a bigger size when it gets too uncomfortable or be able to use it until you even out your taper, that is when your head is as big as your currant base.

I suggest with your future cylinder you could get a bigger cylinder such as 5.5” and a vacuum donut and grow into your goal size over a year or two of proper use but some people prefer the reward of filling up the tube before trading up, to each is own I guess.

Remember to never be hard on yourself especially when it comes to PE or you may associate negative feelings of regret with your exercises and no longer want to do them. Case in point PAIN vs. PLEASURE, you are far more likely to pass up what is painful and put it off for what it pleasurable.

What are the negative PIs associated with pumping other than pain?

I have done my first session today following this guide. I didn’t go to the recommended 5 Hg that everyone said, but rather 3 Hg because I didn’t want to get overzealous on my first time. I did it to 10 minutes and saw that according to my tube I got to 6” BP, which is 1/2” longer than my NBP 5.5”. It seems like a nice start and nothing too drastic. However, after I finished my session and pulled out of my tube. I saw a darkish penis (splotches of deep red here and there) which got me concerned because, from my understanding, that is a negative PI. After about 5 minutes, my penis went back to its regular color for the most part with some areas having a VERY slight purple hue to it.

So, is it a negative PI if you see it right after pulling it out of the tube, or in order to be a negative PI, does it have to stick around for quite a while? I ask this due to the nature of pumping being something that forces a lot of blood into your penis. I’m wondering if I should cut down the session to 6 minutes instead and gradually build up to 10 again or something.

I didn’t get any “fluid build-up” and not much of a spongy feeling. So, I’m assuming this is a good thing though.


Re-Start 3.10.2011 - BPEL: 6.750" EG: 4.5" | Current 7.3.2011 - BPEL: 7.250" EG: 4.625" | Just made my first 1/2"!

My PE log - My Picture log

Originally Posted by WetMayo
What are the negative PIs associated with pumping other than pain?

I have done my first session today following this guide. I didn’t go to the recommended 5 Hg that everyone said, but rather 3 Hg because I didn’t want to get overzealous on my first time. I did it to 10 minutes and saw that according to my tube I got to 6” BP, which is 1/2” longer than my NBP 5.5”. It seems like a nice start and nothing too drastic. However, after I finished my session and pulled out of my tube. I saw a darkish penis (splotches of deep red here and there) which got me concerned because, from my understanding, that is a negative PI. After about 5 minutes, my penis went back to its regular color for the most part with some areas having a VERY slight purple hue to it.

So, is it a negative PI if you see it right after pulling it out of the tube, or in order to be a negative PI, does it have to stick around for quite a while? I ask this due to the nature of pumping being something that forces a lot of blood into your penis. I’m wondering if I should cut down the session to 6 minutes instead and gradually build up to 10 again or something.

I didn’t get any “fluid build-up” and not much of a spongy feeling. So, I’m assuming this is a good thing though.

Darkening is fine if its just due to stagnant blood. Swing your dick around hard and fast (helicopter swings) or roll it between your hands like your are trying to spin a stick to start a fire (firegoat rolls). IF the color returns to normal immediately, its fine.

If you are getting red dots that don’t go away with the above, drop the vacuum for a few days, then slowly bring it back up again. You are correct not to start with 5 in hg. I think Avocets beginner routine has you start at about 3 in hg IIRC.

Originally Posted by shiby916
Can I ask a question regarding the importance of jelqing after pumping.

Is it used to drive the lymph fluid out of the shaft into the head of the penis? Or, is it a method for bringing in new oxygenated blood into the penis, or simply even to add an increase of size?

Jelquing combined with pumping is to get gains not had by either alone. Pumping tends to get girth more than length, so by adding jelquing you can stretch harder than 5 in hg will do for you, and hopefully get length and girth. PLUS jelquing tends to strengthen the vascular valves in a way pumping doesn’t.

Originally Posted by shiby916
Is there an alternative I could use? Maybe a good few helicopter swings and wrap with a hot wet hand towel.

I think this would work getting in new oxygen and even get more of the lymph fluid out, but, if you guys use jelqing in the mix to increase expansion, then, I don’t really know what I can do.


Helicopter swings is mostly to drive the blood out of the skin so you don’t get discoloration. It also rapid re-oxygenates the penis. If your goal is to drive lymph out of the shaft and into the glans, I don’t understand why you would want that. If you are trying to get the fluid out of the penis in general, then just edging will do that. If you are getting a lot of edema, cut back on either your vacuum force, your time or both.

Originally Posted by shiby916
If someone can get back to me with a few suggestions or advice it would be completely appreciated.

I think it’s time to get a pump with a gauge. I have a bathmate, and I think it’s suited best for previous air pumpers (they know the feel) and advanced PE’ers.

I don’t bring this up a lot on the Bathmate threads, because the company is just trying to earn a living, but water pumping is done much more effectively with a regular cylinder, hand pump and overflow container. I have been able to learn a ton about what creates great EQ and what crashes it by monitoring my vacuum levels very closely while water pumping.

I find that 6 in hg for 10 minutes allows recovery for me, 7 in hg leads to over training. If I cycle back and forth between these two, it seems to be working very nicely for me. Without the gauge it would be total hit and miss for guys like me for whom 1 in hg vacuum difference means the difference between too much and too little.

This was why I had such a hard time mastering water pumping before I used a gauge. I don’t frequent this thread much Shiby, so pm me if you have any more questions.

If anyone knows where to buy a cylinder and what types are good could they please message me or reply

I also live in Ireland and I have bought a couple of cylinders from these guys; www.thickwall.co.uk

You may be able to get cheaper elsewhere, but I can vouch for the high quality of their cylinders.

Hi guys, I tried looking for an electric pump which was timer controlled. I did not find anything along those lines. The goal was to find a device I could wear at night which would pump and release at intervals over night while I sleep. I don’t know how safe this would be since I was not able to find much information on it. Do you guys think it would be beneficial to use such a device? It just seems like one would be able to get much more pumping time and increase length and girth in a much shorter time. Also the use of a timer going on and off in intervals would hopefully prevent any damage. Let me know what you guys think about this and if this has ever been done before.

Hey guys, got my pump almost a week ago, it’s the perfect size and I get a good seal. Problem is I don’t get any expansion maybe a little in the tube but absolutely none outside, I’m coming out with a good erection though. Do I need to use more pressure? I’m using about 3hg pressure and have no blisters or skin damage. I appreciate any help I can get

I also have been pumping for a week now. The hardest part about sticking to your routine, Avocet is sticking to your routine. As difficult as it was, I did avoid going over 10 minutes the first week; today I went 15. Looking forward to week 3, I’m wondering about spacing the two 10” sessions. Back to back or morning and evening?

Originally Posted by Kompr3ssor

Hi guys, I tried looking for an electric pump which was timer controlled. I did not find anything along those lines. The goal was to find a device I could wear at night which would pump and release at intervals over night while I sleep. I don’t know how safe this would be since I was not able to find much information on it. Do you guys think it would be beneficial to use such a device? It just seems like one would be able to get much more pumping time and increase length and girth in a much shorter time. Also the use of a timer going on and off in intervals would hopefully prevent any damage. Let me know what you guys think about this and if this has ever been done before.

It’s probably not a good idea to pump when you’re not able to consciously monitor what’s going on. I’d recommend against it. There are threads here about all night pumping.

Here are a couple:

All Night Pumping?

Last night I sleep first hour with pump on penis, and in morning, same

Sleep pump

Originally Posted by theonlymaestro

Hey guys, got my pump almost a week ago, it’s the perfect size and I get a good seal. Problem is I don’t get any expansion maybe a little in the tube but absolutely none outside, I’m coming out with a good erection though. Do I need to use more pressure? I’m using about 3hg pressure and have no blisters or skin damage. I appreciate any help I can get

Knowing your vacuum level, what’s the rest of your routine? How long is your session, how many times do you pump within your session, how many sessions a day do you pump? What do you do about rest days, if any?


For Lampwick, becoming hung like a donkey was the result of a total commitment.

Just did a session 15 minutes ago, I took a risk by doing this but I was just very frustrated I guess my penis is resistant to pressure. I did two sets one working up to 5hg the next working up to 10-12hg which solved my problem had a big fat and HARD dick coming out. My penis has a much fatter head than shaft so it came out kind of square headed and I had a donut haha but it’s okay. Il try tomorrow with the first one at 5hg and then about 8hg for the second and hopefully I see expansion without the donut!

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