I recently learned that Hospira BAC water is considered one of the better options, but the vial is 30 mL and I only use around 10 mL per month, give or take. I have a couple of questions: 1. Can the same vial of Hospira BAC water be used for 2-3 months after opening, or should it be discarded sooner? 2. I also read that BAC water, even after opening, should be stored at room temperature in a dry, dark place rather than refrigerated. I've been keeping my vendor BAC water in the fridge. Can I simply take it out of the fridge and continue using it, or would it be better to start with a new vial? Would appreciate any advice from people who have experience with Hospira! Thank you!