ego
tanks are no good unless you replace the rubber cap every couple days.
And yet, I've had my eGo-C for over a month now, and I'm still using the original caps. No leaks. Just a matter of making sure the whole unit is vertical when I slide the tank up into is and go for a good click.
The tanks are so easy to clean out if I need to. Pop end cap off, pop out first little mouth piece, then pop out the smaller piece inside, rinse all under hot water, let dry over night.
I have a couple packets of the silicone end caps and I've yet to use them. Well I tried one, and I found that it actually caused more problems since it was a tighter seal, the juice wasn't leaving the tank as well.
*shrug*