I use redtail 100% vg in my vivi's - this stuff is THICK. It's fine - IF the tank is at room temp or warmer. If its cool in the room or Im outside a lot the juice wont wick well.
keep the tank warm. Run under warm water if the vg has gotten too thick to use. If you cant run under warm water a vigorous shaking will loosen the vg. You can also thin with water before you refill your tank. but for the most part simply vaping will keep the vg warm enough to flow well.
keep the tank warm. Run under warm water if the vg has gotten too thick to use. If you cant run under warm water a vigorous shaking will loosen the vg. You can also thin with water before you refill your tank. but for the most part simply vaping will keep the vg warm enough to flow well.