id post this elsewhere but sadly i dont have permissions being a newbie 
Is there or has anyone, made a refillable cart with a slider switch on it.....
The reason I ask, I have 10 carts, all black, all look the same....I vap one or 2 while out and have another 1 or 2 filled....I have no idea untill I try it, which is an empty one needing refilling....if the cart had a little slider, that displayed say a red box on one side, and slide covered it in another position, I could "toggle" if they are full or need filling
Is there or has anyone, made a refillable cart with a slider switch on it.....
The reason I ask, I have 10 carts, all black, all look the same....I vap one or 2 while out and have another 1 or 2 filled....I have no idea untill I try it, which is an empty one needing refilling....if the cart had a little slider, that displayed say a red box on one side, and slide covered it in another position, I could "toggle" if they are full or need filling
