01-07-2020, 21:36
(01-07-2020, 18:18)koyasha Wrote:Hey :-)
Thank you! So I never pump more than a little over 2cm? Say my breast is at 1cm, I stop once I reach 3 1/4 cm?
No, doesn't work that way. The 22mmHg is pressure, not distance. Confusing? If you take a 1 meter long glass tube, closed at one end and fill it with mercury (Hg) then turn it upside down in a cup of mercury there will be a near perfect vacuum at the top of the tube. The air pressure on the cup determines the height of mercury in the tube. At normal air pressure the mercury will be 30" or 76cm high in the tube. As air pressure is lowered the mercury will fall in the tube.
2cm of Hg pressure means the mercury has fallen 2cm from 76cm. This is a slight vacuum. Noogleberry has traditionally recommended 5 inches or 12.7cm maximum. I think 2cm is a slight tug, probably just enough to keep the domes from falling off. Certainly very safe but I would expect very slow progress.