I am going to RAP Orlando and I want to have fresh saltwater prepared waiting for me at home. I always follow the instructions of not mixing for longer than 4 hours. I am wondering of how much of a negative effect it will have to mix it longer. From the time I leave for the show and get home to potentially use it would be over 12 hrs. I planned on pre mixing a gallon to have ready. I really do not want to be mixing saltwater when I get home before I start dipping new purchases. Appreciate any input!