Nice thread LV. Let me just fill in some of the blanks for those that wish to try this. The in line valve method is an alternate approach to using a pump and gauge, where you draw vacuum with your mouth and seal it off with an in line valve.
The problem with a pump and gauge is that it is a hassle trying not to get water in your gauge, which will ruin it. I found that I just get a valve like this one;
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You put it on one end of your cylinder tube instead of your pump, then attach another length of tube to the other. It attaches by just pressing it in and then pulling out, it will tighten and seal…super easy. Make sure the length is long enough to reach your mouth while the cylinder is on your dick.
Because you aren’t using a gauge, you are going to use length under vacuum or LUV to determine vacuum levels.
If you use the in-line valve method with the LUV, its very easy.
You have to calibrate your cylinder with markings in either inches or cm, depending on what you use. You use LUV as your way of determining vacuum levels.
First, if you need some lubrication, the very best is just use some hair conditioner rubbed on your dry dick, you only need a little.
Next, close the valve, and fill your cylinder with water heated to the temp you choose. Try to fill it to the top. Take your hard or partially hard erection and push it into the tube as far as you can, taking care NOT TO LEAVE ANY AIR IN THE CYLINDER. ( I think air decreases effectiveness by adding some “springiness” to the vacuum force as opposed to the hard pull of pure water.)
You will find that you will come to a point where you can’t force it in any further. At that point, push in hard and suck on the end of the tube to pre-load the tube with a vacuum. Now, open the valve and draw a long suck on the tube and when you reach the end of your mouths ability to draw in any more, hold it and close the valve.
[if your tube is loose on you, you will need to press it hard up against your body until the vacuum expands your dick enough to seal the air out.]
You may have to repeat this procedure a few time to get your dick to the desired LUV. I then sit with a UV light on the tube to keep the heat at a fairly high level during the time of my set(s). This isn’t needed, but works great to keep temp high for however long you wish it.
What I find, is the tissues begin to relax and expand in girth, which causes length to shorten. I then draw some more vacuum to bring my length back up to desired LUV.
For cool down I either cut the lamp for 10 minutes at LUV or do a separate set with no light and fill the tube with cold water. I don’t know if this is at all needed, but that’s what I am experimenting with.
I think you would be amazed at the girth expansion you can get without edema if your total time under vacuum (TTUV) goes out to 30-60 minutes.
I find, like most of the pumping Vets that in the long run, the lower vacuum levels end up being far more effective. Higher levels work for a while, but then as fatigue begins to accumulate, you rebound and lose the gains.
Also I believe its important to avoid vacuum and time levels that generate edema. If you constantly build up edema, you are creating channels of lymph migration that make it easier and easier to get edema.
It may well be that the edema migration serves to “bleed off” the vacuum force to the tunica, resulting in fluid migration and decrease expansion of the tunica.
Find levels that avoid this, a little is probably OK, but really try to keep it to a minimum.
