Easy Instructions
For obvious reasons, I wouldn't recommend making more than you need at that specific time. Only difference between these instructions for sterile and bacteriostatic is addition of about 1% BA in bacteriostatic. Since there's there's no BA in sterile water, I wouldn't store it.
What you need:
1 new sterile vial - large enough for ml needed
distilled water - 1 gal at WalMart is $0.58
0.22 PVDF Sterile Filter
1 - syryinge, depending on how much you're making. It's easier to get a 10ml syringe if you're making 10ml than to use a 3ml syringe
2 - 20g pins (this size is just what I have around. Since this is water, you could use as small as 25g.
1 - 23g pin for "vent"
Just make sure the pin you use to draw out distilled water in NOT THE SAME as pin used to fill the sterile vial. I always make sure I have plenty of air in the syringe. This helps purge the filter.
1) Draw water from bottle
2) Replace pin with sterile filter
3) Place new clean pin on filter
4) Insert this into new sterile vial
5) Insert new vent pin
6) Filter your new steril water away!
xcel