Same post as in other
thread, use a tube the same dia as the atty and push (
thread end) into the tube until part of the attys outer shell is in the tubing. If the 510 connector has air holes above the
threading, just put some of the cleaning agent you using in a syringe. And force it through the atty via the tube. If it has air holes above the threading and most seal connectors do, the cleaning agent will go through those holes and back flush the attys wick and coil.
Notice the hole, on the right atty standing up, above the threads:
Dan