Silica wick, sold at vape stores and online. He's essentially saying if you removed the two flavor wicks previously, you might need to put them back to stop the flooding.
Search silica wick, you will see it. It's like string. A quick and dirty fix some people actually prefer is plain old cotton, from some 100% cotton balls at your local drug store.
Pull a small bit, roll it between fingers and place it ontop of the coil.
If you have removed and cleaned an atomizer you will understand where it goes. If not, go search a video on cleaning a protank attomizers. It shows the disassembly.
But this would also mean you didn't remove any wicks.
My personal experience, I've had one gurgle/ flood issue on my mini protank. The atomizer for whatever reason just did it. I took it out set it aside and tried another and it was fine. Ive noticed recently If I leave juice ( like bobas bounty ) in the tank overnight it can leach into the tube and gurgle. I either take it out and dab it to soak up some juice, or lightly blow down the draw tube. Not mouth around it though, like your blowing across a coke bottle to make noise. Just enough to pop the juice film in the tube and push it lightly back down n the coil. Just a pfft. Hits fine after that.
