Fasttech doesn't have any Merlin Mini clones, not yet at least.Clean and wash it. Put wick in and poke it inside wick holes lightly but hole closed off with wick material. (Ammit zero wick into wicking hole. This is where the two tanks differ.) Then prime cotton. Screw on tank and make sure juice control is closed. Fill tank and open juice control. From that point on I close juice control every time I fill it. Then open it back up. My Merlin or Ammit never leak and vape like champs. That does not work I have no idea. I vape both tanks at 42.5 watts. I use cotton bacon for wicking and a 3 1/2 mm .45 ohm coil. I have center pin out and air control wide open. . Be sure you have an authentic Merlin and not a fasttech clone. Clones never work as well as Authentic in my experience so I never buy them anymore. CHEERS and good luck to you
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