I have to ask.... what is the tank tool for on Phiniac's site? It says it help for filling?
I have never used a cardo tank before. Is filling not as simple as taking the top cap off, filling it, and replacing the cap?
Just to add to the information that's in the blog:
Its "carto" (cartomizer), not "cardo".
You don't want to ever remove the top cap of the tank unless its for cleaning, and even then its not necessary to do so. Cartotanks work on the principle of negative pressure, or vacumm. Filling the tank with the top cap off presents problems. When you replace the cap, a lot of pressure from the liquid and air in the tank becomes compressed quickly. This forces the liquid to go where there is the least resistance, which is through the wick holes in the cartomizer, which can cause flooding of the cartomizer. Your perfectly primed cartomizer is then ruined.
IMHO, a carto tank tool is essentual if you use a cartotank. Not only does it make it much easier/faster to set up a cartotank, it saves your tank's o-rings from un-necessary trauma from the sharp edges of the cartomizer's top.
Having used the tank tools from Phiniac, IBTanked, and the Slap Yo Moma tool, the overwhelming favorite is the Slap Yo Moma.
Above, Slap Yo Moma tool, IBTanked tool, and Phiniac tool.