Most cartridges is usually refilled with your own THC oil, CBD vape oil or e-liquid before you need to remove them. If it’s a 510 type cartridge, just unscrew the mouthpiece and fill the tank up. You may have to implement a syringe for precision. Michael Thompson @Michael Thompson "I https://rylanqrfag.mdkblog.com/39441691/the-basic-principles-of-10-10-boys