How would you fill it without taking it off as I need to unscrew the base in order to be able to fill it?
Leave the base on the mod
turn the whole mod upside down
Hold the base and unscrew the tank park
put the mod with base down
fill the tank
reassemble.
a 'beauty ring' is also helpful to lock the tank onto the mod so that the 510 connection does not keep moving.
oh
your nautilus probably came with a 'beauty ring'. it's the ring on the right.
You screw that down on your eGo threaded battery, all the way down
then put the tank on, and check that the tank works
then unscrew the ring upwards and lock it upwards onto the tank.
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