(not for sex) Thanks! The paper DOES discuss use of VED for sex in addition to its use in a therapy regime after radical prostatectomy or following radiation therapy from either external beam or brachytherapy. Also discusses use before implant surgery , "recent data would indicate that the use...

When we use a vacuum pump to create an erection we are reducing the atmospheric pressure in the cylinder, and as a result the immediate environment of our penis. Blood flows into the penis in an attempt to equalize the pressure and it gets erect. When vacuum is removed things try to normalize again....

It looks and feels like it's rock hard inside and it expandes to the max length, but when i put the release button and take my penis out it's just soft.

I can't understand i pump but my peniis isn't getting hard.

I'm getting confused.

If your goal is to get blood flowing in and out of your dick in order to oxygenate, you are doing great. If your goal is to pump to erection AND maintain that erection when you release the vacuum, then not so much. Usually a restriction ring or 2 is necessary to impede the venous flow out of the dic...

I don't see Vlad the Impaler.

Regarding the foam, I just put that over my pecker before I use the pump I guess, and the ring goes over it? I usually soak the sleeve in hot water before using; then add water-based lube to the sleeve and my dick and it slides right on. While soaking the sleeve I load the rings on the pump. The fo...

The foam sleeve previously mentioned can be a great asset. In addition, try experimenting with different brands of rings and combos of them. Many have success with Osbon rings. I use them frequently with great results. I have had good luck with Mach 1 rings from Erecaid Pumps in combo with an Osbon ...

Always seemed like this was a self-policing community with little need for a heavy-handed moderator. Most guys do show respect for the others' opinions even if they disagree.
Maybe the "new" moderator is not as intrusive in the normal flow of discussions as a previous one was.

since it’s the penis itself that the blood needs to be contained in That's totally correct. However, back in the days when ed meds started losing some of their effectiveness, rather than up the dose further I experimented with cock rings. I found the correct size that went around the boys and my di...

Not beyond the limit your genetics have given you.