Hi everyone. I use a Protank 3 and the tank needs to be filled 1/4 of the way at all times or it will leak. My question is can I pour the juice I have back into its bottle? Will it have a big affect on the flavor? Also I like to use different juice through out the day. So if it's safe to do it would save me a lot of money. As of now I just dump the juice in fear it will hurt the flavor if I mix with unused juice. Thanks for any info you have learned from trial and error yourselves!