Welcome Dotma!!! And congrats. From one newbie (mine came Friday) to another (that would be you), I am copy/pasting my message from another thread:
Ego-Tanks
I have the ego-t type B, but have only been using for a couple days so take the tip for what it is worth from a newbie:
Initially, I have some leaking, but not since I listed to a little advice from someone with the same issue:
1. First leak type: from the tank at the atomizer: When putting in a newly filled tank I first completely wipe the filled tank with a dry tissue. I then run a Q-tip around the base of the Atomizer where the tank will sit. Next I hold the Ego up by my ear and insert the tank until a hear a slight click of pop. I then rotate, while very gently pushing, the tank at least 180 degrees...sometimes a little further until it is lined up the way I want (so that the manual button is either on the direct top or bottom when vaping).
2. Second leak type. I have found that I have a habit of pulling a little too much, causing some juice to come directly from the tank to my lip and then some sitting in the tip of the tank ready to hit my tongue when I use again. I dont like this. I remove the tank, hold a dry tissue to the hole on the bottom of the tank (where the atomizer will fit) and blow into the tank from the other end. It seems to push the juice back to where it is supposed to be. Then I reinsert the tank according to my description above.
2 days in, and I have had NO issues with leak 1 since doing this, and my issues with leak 2 are greatly reducing as O better learn my equiptment.
FWIW, I got the ego-t type B with 900 mAh