Smok Novo 4 Empty Pod Clear Replacement When inserting the coil into the pod, the added silicone ring on the bottom of the coil would fill the gap, effectively stemming the liquid leaking from the pod that results in a messy vaping experience or dirty hand. 3 Silicone Rings + ∞ Leakproof Experience * Do not inhale immediately after filling the tank. Let it stand for several minutes to get the cotton completely saturated. 1) Open the slot on the pod by pulling back the rubber plug. 2) Inject up to 2ml/ 0.07 fl oz of e-liquid into the slot and press the rubber plug back carefully and firmly. 3) Firmly push the pod back into the novo 4 device. 4) Wait 2-3 minutes before vaping.