Originally Posted by carrielsal
I am new to DIY, but did a lot of reading on the subject. The consensus for long term storage is the freezer. The nic should be transferred to amber glass bottles with as little headroom as possible. I purchased 500ml of 100mg/ml nic and transferred it to 30ml amber Boston round bottles; that way I only have 30ml at a time that is exposed to the air.
Nude Nicotine has a pretty good write-up on long term storage for nic.
E-Liquid Chemistry Education Archives - Nude Nicotine
If you just tighten the screw at the bottom of the RBA, it's not enough to secure the positive screw block. You may also have issues with the center screw coming loose when the RBA is attached or removed from an APV causing intermittent shorts.
To secure the positive block remove the small center screw, #19. Hold the positive screw block to the negative screw block with a pair of needle nose pliers so it doesn't move, then tighten the center screw, #18.