I have bit less than half of Aquamira 1oz bottles left over from my trip last year. I am going on two days more of longer trip this year so just orderd 2oz bottle since I will be needing more than half a bottle of Aquamira solutions.
Do I just fill up my old bottle with the solution from the 2oz bottle? or should I take the old and the new one with me on this trip? Whats the best way to do this? Take extra bottles?

