Forgive my ignorance on the subject...
But sterile water... is just water thats been passed through a .22um PES filter correct?
Could one use distilled water, filter it in a PES filter, then use it with l-carn/BA, and filter again?
Typical Homebrew L-Carn is Distilled water, BA and Carnitine Base, mixed together until clear then filtered with a .22u PES filter, yes. If you want to lower the PIP make sure to balance the PH with HCL.
You could also boil the Distilled water first if you have further sterility concerns but I've not seen a recipe that called for it.
