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Hello all, I bought a longjohnny, and was trying to use it to just pump my balls, but my dick keeps getting sucked in. I read elsewhere that a cylinder with a diameter of 2.5" is good for balls only and I noticed that the VelSeal has different diameter options at checkout so I was considering buying it and using it to pump my sac only. Is this viable? And would I have to buy anything besides that? When I bought the longjohnny I also bought the metal starter pack for pumping, would I also be able to use that with the VelSeal? Thanks in advance for the answers!

From my experience, ball only pumping is pretty hard to do. I have silicone gaskets from other tubes and I have tried to isolate the balls only with them. Subsequently, my cock always gets sucked in unless I am totally hard which is a challenge to do if you are going for an extended session.

The way I go with balls only is to have my cock almost fully erect and while my balls are still in little vacuum, I strap my cock to the tube. This is also not the most efficient method, but does the trick after you pumped a while with cock and balls together. Also I tend to drag the tube down towards my anus so my cock has less chance of slipping in

I have two homemade tubes that I use a VelSeal on.

One is a 32oz drinking bottle (http://www.amazon.com/Contigo-Autoseal- ... ng+bottles). I cut the top off where the lid screws onto the bottle and replaced it with an inch and a half long section of 2 inch ID acrylic tubing. I used acrylic glue to attach to the bottle then applied silicone to the seam to smooth over any edges. Make sure you sand smooth the edges before gluing and make sure you get it centered and that it matches perfectly. You don't want any ridges or edges, sharp or otherwise.

The second bottle is a Nalgen wide mouth bottle (http://www.amazon.com/NALGENE-Tritan-1- ... ter+bottle). I use the same VelSeal on this bottle, placing it right over the section where the lid screws onto the bottle.

I prefer the first bottle as it has a better shape, but it currently has a leak.

Best way I have found to give the balls a good stretch with a tube. Put a 2" silicone ring around the balls and grab your balls so the ring and your balls are tight insert into the tube and start suction keeping resistance. The ring helps with the seal. I use a 2 1/4" x 11" vel seal tube and am at almost 9" stretch

I keep myself erect if I want to pump balls only but this I can do maximum for 3 hours and I need a lot of porn to watch during pumping

Great point that staying erect is the key to not getting pulled in backwards!

I find I can pump balls only in an elliptical tube (a better shape than a circular one) ... provided I stay erect of course.

Tiger