What do you mean it will not hold liquid at all? If it were me I would first take a paper clip straighten it out and push it all the threw from the threaded end through to the top part. I would then take that same paper clip and fluff up the filler around the coil CAREFULLY don't mess with the wire in there.
I would then try it again. If it did not work again I would take the paper clip again and turn the carto over to the threaded end up and turn the little screw thing that is inside there. Try to the right first and this should open it up a bit, if not enough do it again. If it seems to be getting tighter then turn the other way until it loosens up a bit.
You don't have to mess with them very often but sometimes these things will fix the issues. Keep us updated.
