I'm toking on a refilled Cig2o carto right now.
This is the 24mg tobacco carto the kit comes with. I refill with store brand tobacco flavored juice. This is the second or third refill without cleaning since I'm using tobacco flavored juice and not wildly different flavors. So far, so good. I do imagine that if I keep doing this, a cleaning will be in order.
I can get 12-15 drops in a carto, so far. I started with 12 and went up to 15 on one I filled tonight. Here's how.
Drop the drops into a shot glass. I do this because the tip on the bottle is too big to fit into the carto. I do not take the carto apart. I have once. The white end pops off with a fine tip screwdriver. It's just easier not to.
Use a monoject 412 dental irrigator to draw the drops out of the shot glass. They are available on the internet. The tip fits nicely into the carto.
Push the tip into the white end of the carto and s-l-o-w-l-y push about half the drops into the white end of the carto. Rotate the carto as you do.
Push the tip into the silver end of the carto and s-l-o-w-l-y push about half the drops into the silver end of the carto. Rotate the carto as you do.
What you want to do here is squirt the juice into the media, not straight down the middle. The curved tip on the irrigator is perfect for this.
If any drips out, wipe it off and set the carto on its side for a few hours. I haven't had a need to use one any sooner than 8 hours after filling.
I haven't counted toke for toke, but I feel I'm getting a good reuse so far. Will post up as I go on.