It is sucking air and the [plastic gasket needs to be sealed tight. I would guess the the knobs part number 712-0421 are working loose and this allows air to seep in from around the plastice seal. I would recommend using a fender washer and a 5/16" by 18 locking nut in place of the knobs to keep it sealed
to suck willies
To suck-in dirt.
Vacuum cleaner
you put the vacuum on the girl's feet and start the vacuum it should suck up the pantyose.
Vacuum.
pies
get a vacuum and suck it up...
Any space, from which we can suck out any air, forms a vacuum.
Unless the vacuum is specifically designed for this then is could be dangerous.
It would depend on the size of the vacuum unit and the pipe extensions it came with.
A vacuum cleaner creates suction by lowering the air pressure inside the vacuum, causing higher pressure air from the surrounding area to rush in and fill the space. This rushing air creates the sensation of air being "sucked" into the vacuum cleaner.
the purpose is to suck myy ballls