Zephryhills ok for top off?


I have a Blue Thumb
Leaving for my honeymoon tom. and I have no top off water for my family to use. Can I run to the store and buy some gallons of zephryhills water? I know people use the refilling machines for their water so I believe I'll be safe.
I wouldn't use zephyrhills for top off although my fridge is filled with it. I'm pretty sure it has a lot of dissolved solids in it but I'm not sure of what. Hopefully you can find a jug of DI or RO at Publix or walmart.