the droplets at the top of the bottle are the nitro evaporating if i were to tighten the cap down and flip it over would the nito go back in the fuel?

are you sure that those droplets isn't the moisture from the air in the bottle??

The droplets is just water...

no its not i read something about the droplets when it gets hot the fuel evaporates more and accumulates at the top of the bottle but very little of it could be moister from the air but 75% is nitro thats my ?? tipping it dose it get the nitro back into the fuel