Alright guys here a simple resolve for leaky novas. If your leak is coming out of the threading where the caps screw onto the plastic tube, which in my experience is 9 times out of 10 even with my firends vivi novas, then a simple fix is to wrap your threads with Plumbers Teflon Tape. You can find it at any hardware store or dollar store and thats about as much as it costs too, only a dollar. Its very cheap and very effective! Its a white tape and comes on a little ring like spool kinda like how medical tape comes. Yeah some novas are just machined better than others plain and simple so if the threading got mis-aligned or something in the production process then Teflon Tape is your answer. Just wrap the threading on the TUBE tightly about 2 or 3 times around, screw your cap back on and BAM no more leaky nova! After mine oozed liquid ever so slowly from the threading and then I put that tape on it has been filled with juice for a month now and not a single little drop leaked anywhere. Its such an easy fix! I use airbrushes alot and have to use that tape on the threading of my hoses when I screw it into an air compressor so thats what gave me the idea and its flawless. Again this fix is ONLY if your leak is coming from the threading which is unfortunatley common in vivi novas both standard and mini sizes.