Are my gel beads ruined if I used tap water once?

Title says it all.

I had purchased a gel bead humidifier and the first night used tap water woops!!

After that, I was in the shop and the guy refilled it using a propyl solution (I've also read NOT to use that and ONLY distilled water).

Is it ruined? Should I buy another... or just use the distilled water OR propyl solution and I'll be fine?

Thanks,
RR