Does Pumping for too long cut off circulation?

Salute to members of Thunder’s,

What I wanna ask is: Does the pump cut off circulation to my penis IF I pumped for like 3-4 hours straight (with out pulling my dick out)?, since I’m a newbie pumper, I wouldn’t wanna pump for that long, but anyway I’m just curious to know. Also, I use water based pump.

One more question regarding my water pump: I’ve heard that in a water pump, the water you draw out will need to be accompanied by an immediate expansion in the volume of your penis by the exact same amount as the volume of the water you draw out, SO what will happen when I could finally draw out all the water in the cylinder?

It is generally not recommended to pump for more than 20 minutes at 5 hg. I have pumped for up to an hour at 4 hg; however, the longer sessions tend to build up a lot of excess fluid inside the cells of the penis skin.

My guess is that pumping for over an hour or two would allow some blood and fluid to remain in the penis too long without being refreshed with oxygen such that damage would start to develop.

My experience, it depends on the cylinder size not duration.

First I started with a cylinder larger than my pumped girth. I ended up with swollen weird shape penis, veins and dark spots.

I switched to a cylinder that my pumped girth fills the cylinder walls entirely. Resulted with regular shape and no other bad stuff I mentioned above.

I kegal while in the cylinder. Even under pressure you can see my penis expand. That tells me that blood is still circulating quite well.

+1

Apart from blisters and adema, this is my experience with excessive time under high pressure.

Injury Caution…

That’s what I need to hear, I will keep that in mind, thank you for the detailed explanation.

@Zoni112: Also, I think using a fit cylinder will bring more length gains as well. Thanks for the idea.

@Titleist: I will kegal as you say, but I wanna ask what is the maximum time you had been in the cylinder? (I mean maximum time in a single pump up, not the total session time)

@Tinytim: I will be careful sir, also, have you tried water pump, the expansion is crazy!

I don’t think there is any chance of cutting off blood supply because the cylinder is not coming into contact with any arteries and veins that are circulating blood to the penis.

The main problem with pumping for a long time is excessive bloat from accumulating lymph fluid or blood spots from broken capillaries.

gprent, thanks for the answer, sounds pretty logical I guess, I will be careful though.