Purchase and test ALL of your equipment AT LEAST two weeks before you go
Whether it's your SteriPEN, tent, or matches, make sure that everything works. It's a chaotic world, and something in your kit could be missing, broken, or you may have forgotten how to use or assemble that something. You don't want to be in the middle of nowhere and find out that something is wrong.
If there happens to be an issue with your SteriPEN, and we have advanced notice, we can ensure a satisfactory SteriPEN will be in your hands before your trip. If you are leaving the next day, there's really not much we can do to help.
We also advise going over the manual to make sure you understand how to properly use your SteriPEN.