This is a great thread for me to read, cause I need more options. The bottle and tube I got with my bottom fed mod is just ridiculously hard to use. It squonks great and it drains really good but there's no outcome where I don't have an issue getting the tube into the bottle. There's always juice everywhere, it's crazy tight. The hole on the cap is bigger than the tube and the hole in the bottle, I don't even use the cap cause there's no point, the tube fits into the bottle so tightly that really the cap is useless. To fill I always have to take the tube out of the mod and out of the bottle, fill the bottle, and then try for 5 mins to squeeze the tube back into the bottle and reinsert it back into the mod, that's when the juice comes out, it's like a vacuum affect.
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