First, this method is probably already out there. I'm not trying to take credit for this. At this point, I'm not even sure if it will work or not, so please do not go trying this until I post my results.



I got this syringe from Walgreens for a couple bucks and it comes with the little attachment. As you can see I had some caramel apple in this carto. Thew some water in a coffee cup and heated it up in the microwave. Attached the carto the the attachment and sucked water through the carto. I did this a few times. Changed the water, reheated and repeated.
I've tried to upload the after picture showing a very white filler, but it's failing for some reason. I'll try again later.
I now have my cartos sitting upside down on a towel to dry. I'll probably let them dry over night or up to a few days. I've heard of people throwing their carto in the oven at a very low setting for a couple hours. Not sure if this is safe or not, so won't risk it.
Either way, I'll post back later after I fill one up and fire it off and I'll also try to get that after pic loaded.
On another note, I saw someone post a video showing a very easy way to fill a carto. This guy created an adapter for a syringe and would fill his carto by sucking the liquid just as I did with the water. Not trying to step on his toes, but seems like if someone wanted to fill a carto using that method, they could buy this syringe and save themselves the trouble of making an adapter. Just an idea.
Edit: Just smelled both my cartos and they still smell like the juice that I had in there. Maybe this cleaning method didn't work all that well.



I got this syringe from Walgreens for a couple bucks and it comes with the little attachment. As you can see I had some caramel apple in this carto. Thew some water in a coffee cup and heated it up in the microwave. Attached the carto the the attachment and sucked water through the carto. I did this a few times. Changed the water, reheated and repeated.
I've tried to upload the after picture showing a very white filler, but it's failing for some reason. I'll try again later.
I now have my cartos sitting upside down on a towel to dry. I'll probably let them dry over night or up to a few days. I've heard of people throwing their carto in the oven at a very low setting for a couple hours. Not sure if this is safe or not, so won't risk it.
Either way, I'll post back later after I fill one up and fire it off and I'll also try to get that after pic loaded.
On another note, I saw someone post a video showing a very easy way to fill a carto. This guy created an adapter for a syringe and would fill his carto by sucking the liquid just as I did with the water. Not trying to step on his toes, but seems like if someone wanted to fill a carto using that method, they could buy this syringe and save themselves the trouble of making an adapter. Just an idea.
Edit: Just smelled both my cartos and they still smell like the juice that I had in there. Maybe this cleaning method didn't work all that well.
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