Make sure it's bacteriostatic water and not "sterile water"
Also look at ebay pics in click on item description, most times they list the exp date in description. If all else fails, just message seller
Ya but what jbox is saying is he uses plain sterile water with no issiues and I've heard of guys doing that with no issiues. I still use bac water with 0.9% ba just in case.
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