problem with rubber grommet

[mafils]

my grommet broke so i bought a new one.

it doesn't fit tho and i can't get the stem down fully screwed into it.

tried another one and same thing happend.

what can i do?

[John Deere]

What size is it, and what kind? (syrian, egyptian...etc) also where did you get the grommet? Sometimes you have to stretch the grommet over the end of the stem, and then put it in the base. let me know.

[cypress]

What size is your hookah. There are two different size grommets. One
for a small hookah and one for both medium and large. Sound like its
too big or too fat. If its too fan you may have to try and shave some
of it off with a sharp knife if you dont want to buy another one. 

[King Mo]

you can always wrap some cardboard from a cereal carton or something similar, or even thick household tissues/napkins/roll.

that will do the job of the grommet fine (if not better) while you sort out the grommet problem.

[yashman19]

What I used to do when I lost my grommet was get a paper towel, soak it
in water and then drench it out so it is just moist. Then wrap it
around the stem and it keeps everything pretty much air-tight, even
more so than using an actual grommet. Hell, my friends have grommets
but prefer to use moist paper towel in lieu of the grommets.