Think you might be confused a few posts back asked if put empty condom on bat end,,No that's not right,,,Here we go step by step
Step 1 go to mailbox get your 510 cartos from box
Step 2 open box containing 510 cartos grab 1 carto from box of 5 and open it you notice each end has a condom on it remove both,,the condom on bat end is larger,,,this is the one we are going to use
Step 3 inside this larger condom is a little piece of rubber that was sticking in bat hole, remove this little piece an round file it (trashcan).
Step 4 Now we have a carto and a condom setting on the table fill up the condom with your favorite juice approx. 3/4 full for empty blank carto
Step 5 now we have a condom sitting on the table with ejuice in side it, grab the carto with 1 hand, hold it with mouthpiece looking at the cieling.
Step 6 slowly insert battery into the condom until bout half the juice is inside the carto, pick up the carto by the mouthpiece and give it the old mercury thermometer shake with your hand, snapping your wrist very fast back and forth. for bout 30 seconds
Step 7 place carto in your hand mouth piece still looking at the heavens, with other hand side the condom rest of the way over the carto, gve it another thermometer shake for bout 15 seconds this time.
Step 8 remove condom and blow softly from bat side, hear little gurgling sound just few drops in the tube, pat off both ends with a dry towel or napkin.
Step 9 This not always necessary but especially with a new carto i would let it set bat down for bout 10 minutes or so before vaping, just so all wadding is wet at the bottom of the carto,, just place it in the condom just in bout 1/4 inch just so it sits upright on the table.
Step 10 choose favorite vaping device and vape away... hope this helps.. eliminates all confusion