Fa-Q, the Eviva is very easy to fill and drain, but its important your wick is up against the juice hole. All I do is take off the top cap (remove the drip tip first, at least if it has a flange on it). When I fill it, I do invert it for the last turn of the top cap. Sedge does it by just turning the top cap very slowly. To drain it because I want to rewick and its not empty, I just take off the top cap, and pour it back into the bottle. I don't even have to block the airholes. Hope that helps.