I carried out an experiment with water pumping using the system. And noticed how the static pump pressure changes when a blow is applied.
The pump had only water in it (as well as my dick) and I pumped it to 5hg
When I applied the blow the vacuum changed immediatey to <> 7hg, then dropped to <> 3hg then recovere to 5 hg again. And this contied with those changes each time I struck the blow.
The whole process was fairly fast . I would guess about ¼ second.
I’m not sure whether this happens iin air pumping but I didn’t notice any change. But this may be due to the air movements having less resistance, are much quicker.
The water being heavier would slow things down to an observeable time scale.
I imagine the increased hg is due to the blood being pushed into the penis and causing it to swell . The movement to a lower than standard hg must be in someway connected to the back vacuum in the penis before the blood supply catches up.
Hopefully our more scientific members can offer a solution.
Don't be a lurker left out in the cold. :lurk: Join the happy band of donors!
Psst! The link is at the bottom of the page :bigwink: